Re: EJBQL
Denis, this is way overstating the "compliance" of both Orion and Weblogic. Both of these servers have substantial issues with adherence to the proposed final draft. Both lack some features and implement others incorrectly or incompletely. Any examples you see that are written to demonstrate EJB 2.0 on Orion (particulary the ones I wrote) demonstrate not EJB 2.0 as speced in the PFD, but rather how to make EJB 2.0 run on Orion. Orion has big differences between what it does and whats written in the PFD spec. This is not a knock on Orion. EJB 2.0 is a moving target and keeping up would take substantial resources maybe for very little gain. I expect when the actual spec comes out we will see Orion adopt it agressively, although I am just guessing, as I don't speak for Orion. I cdertianally hope this is the case, as I want to deploy my J2EE/EJB 2.0 stuff on it. If you want to start coding for EJB 2.0 now then there are two options that adhere ridgely to the PFD. First, is the reference implementation of J2EE beta recently released by Sun and available from them. Next is the MVC Soft persistence manager, available at: http://www.mvcsoft.com Be warned! The final spec may change and you may have to change your code. Have fun and good luck! Jim --On Friday, March 02, 2001 10:49 AM -0800 denis despinoy [EMAIL PROTECTED] wrote: After testing against the ejb2.0 spec It appears Orion and Weblogic are the only two considered EJB2.0 compliant so far. What are looking after in the ejb2.0 spec ? DD --- Ray Harrison [EMAIL PROTECTED] wrote: The latest information in hand that I know of is that no - they do not support EJBQL - although that may have changed recently. Not sure that I know of any app server that is fully EJB2.0 compliant as yet... Cheers RHH --- fresnaULL [EMAIL PROTECTED] wrote: Does Orion provide support for EJBQL? Which Orion version? Is Orion full EJB 2.0 compliant? Thanks in advance __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ I shall be telling this with a sigh Somewhere ages and ages hence: Two roads diverged in a wood, and I - I took the one less traveled by, And that has made all the difference. - Robert Frost, 1916
Re: Test20Cmp / Jim Archers example
Yes, I know why they are there...
At one point with some version of Orion way back when, failing to
initialize the fields to something caused an error (I don't remember
exactly what error) when the bean was persisted or activated or something
like that. Much of my code from which pieces of the examples were taken
didn't populate all fields in the bean, just the key field, in the create
method. This example, I believe, does not work that way (I would have to
check and don't remember off the top of my head).
So prehaps the need for this was long ago removed by a fix or upgrade. This
is an old example now. Mostly, the three examples I wrote, I feel, are
usefull for demonstrating how to make EJB 2.0 CMP work under Orion. Orion's
implementation veries a bit from the proposed final draft, so these
examples do whats needed to make the code work.
BTW, Joe and whoever else maintains OrionSupport.com, could you guys add my
other two examples to the site? I get many requests for these files from
people who said they looked there first...
Jim
--On Thursday, February 22, 2001 1:02 PM -0500 Tim Endres
[EMAIL PROTECTED] wrote:
I am not certain about Jim's example. However, we use this style of code
to null out "transient" fields that get filled in during the use of an
entity bean. The problem is that these fields are not "cleared" between
passivation and re-activation. Thus, you can have fields with invalid
values from a pervious incantation of the bean. Clearing these fields
solves that problem.
tim.
I just read Arhcer's Test20Cmp example (posted on this list earlier on).
I am unaware of the need for the initToNull() method (see below); does
anyone know why its there - its is repeated in the later examples aswell.
Well, I know at least one guy who knows... but if anyone else but Jim
himself knows, you are of course also very welcome to reply ;-). Thanks.
Randahl
public String ejbCreate() {
trace("ejbCreate() entered");
initToNull();
setUserId("jarcher");
setFirstName("Jim");
setLastName("Archer");
setEmail("[EMAIL PROTECTED]");
trace("ejbCreate() exiting");
// In CMP, should return null.
return null;
}
//
private void initToNull()
{
trace("initToNull() entered");
setUserId(null);
setFirstName(null);
setLastName(null);
setEmail(null);
trace("initToNull() exiting");
}
I shall be telling this with a sigh
Somewhere ages and ages hence:
Two roads diverged in a wood, and I -
I took the one less traveled by,
And that has made all the difference.
- Robert Frost, 1916
RE: CMP 2.0 OR mapping problem
Heck, I would love to know a guess on when the darned spec will be available! The
sooner the better!
Jim
--On Friday, February 23, 2001 9:15 AM -0500 Michael A Third [EMAIL PROTECTED] wrote:
Thanks for the reply. We were already doing this, and I realized how
repetitive it was and hoped that 1.4.7 could cut the time we spent doing
this (we have a lot of these relationships). Does anyone have a guess as
to when full EJB 2.0 support will be available?
Thanks,
Michael
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Jeff Schnitzer
Sent: Thursday, February 22, 2001 8:18 PM
To: Orion-Interest
Subject: RE: CMP 2.0 OR mapping problem
Bidirectional relationships do not yet work.
There are two workarounds that have worked for me:
Manually add (and remove!) both sides of the relationship. So your
Marketplace.addStorefront() method would look like this:
void addStorefront(Storefront front)
{
this.getStorefronts().add(front);
front.setMarketplace((Marketplace)this.ejbContext.getEJBObject());
}
etc. Alternatively you can modify your
Marketplace.getMarketplaceStorefronts() method so that instead of
obtaining the storefronts from the internal collection it runs a
findByMarketplace finder method on the StorefrontHome. Then you just
need to make sure that the storefronts-marketplace reference is kept
solid.
Jeff
-Original Message-
From: Michael A Third [mailto:[EMAIL PROTECTED]]
Sent: Thursday, February 22, 2001 3:37 PM
To: Orion-Interest
Subject: CMP 2.0 OR mapping problem
I have been trying to get Orion to correctly map a non-dependant
bidirectional 1:N relationship using EJB 2.0. It tries to generate a
collection mapping that uses a third table to hold the
reference. I was
able to deploy it properly using a unidirectional relationship.
Here is the relevant entries from ejb-jar.xml (edited for brevity):
entity
ejb-namecom.trademotion.ejb.base.Marketplace/ejb-name
cmp-fieldfield-namemarketplaceID/field-name/cmp-field
cmp-fieldfield-namename/field-name/cmp-field
cmp-fieldfield-namestorefronts/field-name/cmp-field
primkey-fieldmarketplaceID/primkey-field
/entity
entity
ejb-namecom.trademotion.ejb.base.Storefront/ejb-name
cmp-fieldfield-namestorefrontID/field-name/cmp-field
cmp-fieldfield-namename/field-name/cmp-field
cmp-fieldfield-namemarketplace/field-name/cmp-field
primkey-fieldstorefrontID/primkey-field
/entity
relationships
!-- 1:N (Marketplace Storefront) --
ejb-relation
ejb-relation-nameMarketplace-Storefront/ejb-relation-name
ejb-relationship-role
ejb-relationship-role-namemarketplace-has-storefronts
/ejb-relationship-role-name
multiplicityOne/multiplicity
role-source
ejb-namecom.trademotion.ejb.base.Marketplace/ejb-name
/role-source
cmr-field
cmr-field-namestorefronts/cmr-field-name
cmr-field-typejava.util.Collection/cmr-field-type
/cmr-field
/ejb-relationship-role
ejb-relationship-role
ejb-relationship-role-namestorefront-belongsto-marketplace
/ejb-relationship-role-name
multiplicityMany/multiplicity
cascade-delete/
role-source
ejb-namecom.trademotion.ejb.base.Storefront/ejb-name
/role-source
cmr-field
cmr-field-namemarketplace/cmr-field-name
cmr-field-typecom.trademotion.ejb.base.Marketplace
/cmr-field-type
/cmr-field
/ejb-relationship-role
/ejb-relation
/relationships
Here is the generated orion-ejb-jar.xml (again, edited):
entity-deployment
name="com.trademotion.ejb.base.Marketplace"
primkey-mapping
cmp-field-mapping
name="marketplaceID" persistence-
name="marketplaceID" /
/primkey-mapping
cmp-field-mapping name="storefronts"
collection-mapping
table="com_trademotion_ejb_base_Marketplace_storefronts"
primkey-mapping
cmp-field-mapping name="marketplaceID" persistence-
name="marketplaceID" /
/primkey-mapping
value-mapping
type="com.trademotion.ejb.base.Storefront"
cmp-field-mapping name="value"
entity-ref
Port 23791
Hi All... Does anyone know why Orion is listening on port 23791? Thanks... Jim I shall be telling this with a sigh Somewhere ages and ages hence: Two roads diverged in a wood, and I - I took the one less traveled by, And that has made all the difference. - Robert Frost, 1916
RE: Any news from Orion yet??
Everyone on this thread has made excellant points. To me, the issue for this list is not the best way for these people to train on EJB. Thats for them (and then their customers) to decide, and I am disinterested. I think the point here is that Orion was asked a question and didn't reply. A simple and quick 'yes' or 'no' would suffice. Jim --On Wednesday, February 14, 2001 9:25 AM -0800 "Duffey, Kevin" [EMAIL PROTECTED] wrote: I can not speak for Orion, but I can tell you that I have read many a thread in this list and there are plenty of people knowledgeable about Orion. However, I still lack the connection between Orion and EJB. Sure, it gives you a platform to run EJB on, but I am not sure why someone must learn Orion EJB, instead of just EJB. If you are looking for a FREE EJB application server, there are a few around, JBoss being one of the best I have seen. However, I don't believe you would need to pay Orion for the use of Orion in a classroom. I could be wrong, but that doesn't sound like a production environment to me. Orion only charges based on production licenses. Again..I could be wrong and if I am I apologize. In that case, I would look at using free alternatives that get the job done. Jboss appears to be a very capable EJB application server, and I am sure Tomcat can provide a good enough front-end for jsp/servlets to get the job done. Also, unless you are teaching a specific tool (such as JBuilder) which is not what is indicated in the original thread (teaching EJB on Orion), I see no reason why you wouldn't teach them the "right" tools, being command line tools that get the job done. There are many free IDE's that do nicely, and cheap ones too. I personally use UltraEdit ($30) and ANT (Java make/script tool..free) that allow me to quickly compile, jar and deploy a project with a single easy to understand xml script file. My point is, why does it require a $3000 tool for each person in the class, and a $1500 (by the way..that is very cheap especially when you compare the costs to a cluster of WebLogic, WebSphere or Jrun (or others) that can costs as much as $15K (or more) per CPU per server) app server when you can teach them the EJB and the tools that get the job done (that the fancy IDE's usually use anyways) for free? My focus here is on the original post that said they want to teach EJB. There wasn't any mention of teaching tools that deploy EJB into any specific app server. I think the original post made it clear they want to instruct on EJB. If the class is to teach EJB within Orion, then possibly teaching how to set up Orion, deploy into it, etc is a good thing. If you took that approach, and you bought several licenses at once (if they are required), the Orion team may even give you a break on the price. As for why they don't respond..well, I can't answer that. Anyways..I hope the class goes well. -Original Message- From: Rabi Satter [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 7:03 AM To: Orion-Interest Subject: RE: Any news from Orion yet?? As a former trainer I can understand exactly what Kevin is trying to say. That is when you do training you need a platform for the students to learn. In the case of EJB you don't say gee here is how it should work and have a nice day. You say here is how it works and now lets have you build an example. The spec does not help you and your students build a "working" example. You need an app server. As for the cost at $1500 a pop per workstation and a typical training room of 15 workstations plus trainer workstation that is $24,000 not including cost of hardware and other software to support training people on EJB like JBuilder. JBuilder Enterprise is $2999 and you can see that a training room can quickly become an expensive proposition without aid from the vendor. I have not even begun to add the cost of developing courseware and instructors. Regardless, what is more disheartening is the lack of response from Orion. Quite frankly the fast way to become the number one app server is by training people. Those people then become your main sales force and with little or no cost to the company. -Original Message- From: Kevin Duffey [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 1:41 AM To: Orion-Interest Subject: RE: RE: Any news from Orion yet?? I am sorry, but I don't quite understand how training of EJB on Orion is any different than that of other platforms? You are trainging EJB, not the vendor application server. EJB is EJB, no matter what platform it runs on. If every vendor adhered to the spec as they should, an EJB will run on any app server. Also, are you providing an online service that teaches over the internet and you need Orion to run that site? Or do you have in-class instruction and each person in the class needs to use Orion? I am unclear as to why you only need one license? Orion
RE: How does this effect Orion?
The EJB 2.0 support is my big question. Currently, there is none. Jim --On Wednesday, February 14, 2001 3:37 PM -0800 Jeff Schnitzer [EMAIL PROTECTED] wrote: That's an interesting question. The investor story is not good - they recently terminated their CEO/President and CFO, restated a year of earnings (which put them in the red), and reduced their heacount from 132 to 106. Their stock, which was trading ~$20 this time last year, is now at $0.31. New Atlanta backed out of their stock-based acquisition arrangement, although Unify is still bundling ServletExec. It looks bleak. How is their EJB 2.0 support? I'm guessing that quite a few J2EE providers are going to be shaken out in this transition. There's no way a market will continue to support thirty people selling the same thing. Jeff -Original Message- From: Kemp Randy-W18971 [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 14, 2001 7:10 AM To: Orion-Interest Subject: How does this effect Orion? I have read the announcement at www.theserverside.com about the ewave server for only $595 per CPU. The company marketing it has a good marketing and capital engine behind them, so I wonder how this will effect Orion? It is very interesting that there are over thirty vendors offering some flavor of J2EE technology, anywhere from the high priced servers like Weblogic to the open source servers like Jboss. Yet this industry is supposed to be around $2 billion now and projected to be $12 billion in two years. This means there is a market for all the "good" products, and the consumer and developer will become the clear winners. I shall be telling this with a sigh Somewhere ages and ages hence: Two roads diverged in a wood, and I - I took the one less traveled by, And that has made all the difference. - Robert Frost, 1916
Re: EJB-QL in 1.4.7
No. --On Monday, February 12, 2001 11:02 PM -0600 Christian Billen [EMAIL PROTECTED] wrote: Is there any implementation of EJB-QL at this time in the 1.4.7 code? Thanks, Christian
RE: Any news from Orion yet??
As the lower cost and open source products continue to mature, we may see prices come down. Check out The server side today. http://www.theserverside.com JIm --On Tuesday, February 13, 2001 6:37 PM -0600 Kemp Randy-W18971 [EMAIL PROTECTED] wrote: I don't knock the higher priced products, and they do have the lion's share of the market, and many large companies run big applications on them. Personally, I feel as many low price (Orion) and open source (jboss, etc.) mature, more people will ride that path. Look at the history of Apache, and now 60 % of the world's servers run it. Developers see that the low priced and open source options are maturing and proving themselves. It's just a matter of time. -Original Message- From: Konstantin Polyzois To: Orion-Interest Sent: 2/13/01 6:56 AM Subject: RE: Any news from Orion yet?? "Weblogic (and the high priced products like Websphere) are great..." Speaking as someone who has done development using Websphere (3.0 3.02): It sucks! Don't use it for anything but JSP or servlets. It has so many flaws that I don't even want to get in to them!! /korre -Original Message- From: Kemp Randy-W18971 To: Orion-Interest Sent: 2001-02-12 13:58 Subject: RE: Any news from Orion yet?? Weblogic (and the high priced products like Websphere) are great, if you want to pay the price. They come with nice tools like front end gui's, good documentation, paid support, etc. But if you look for the opinions of developers who have used these products, and compared them to Orion, jboss, etc., they would say the EJB capacies are no better then the other high priced products. In order of ranking, here's how I look at the other products. 1 Orion -- This product is ready now, but I haven't seen anyone from this list run a Sears store on it. 2. Jboss (www.jboss.org) -- The founders are very bright, have five hundred developers on the projects, have EJB heavies contributing to the list, and it's a very easy to use product. Personally, even though it is ready for production now, I would wait for it to mature a bit more. It's like a fine wine -- drink it now, and it is OK, or allow it to age a bit then drink it (like jboss 3.0 final). 3. Openejb (www.openejb.org) - this project has a very bright and well known person heading it, and it is slated to be intergrated with Tomcat and Apache. It has yet to prove itself, as it is not yet ready for production release. But it has good future promise. 4. Jonas (www.evidian.com/jonas) - This is a good product, but it is not as advanced as the other two open source products and I don't think they have as many people behind them. 5. Enhydra enterprise (www.enhydra.org). If you like the enhydra application server, this product has potential. But it is not production ready yet and it intergrates with the jonas server. In summary, Orion is here now but can it run Sears? Jboss is ready but I would let it mature a bit more for production environments. Openejb and Enhydra have great potential, but they are not ready yet and have to prove themselves. Jonas is OK but I prefer the other open source alternatives. -Original Message- From: Anthony W. Marino To: Orion-Interest Sent: 2/11/01 9:06 AM Subject: Re: Any news from Orion yet?? On another note, can you and/or someone, qualify/quantify what you mean by the following previously made statement : "For the most part, Orion is still very much ahead of the pack, and the speed is stil EXCELLENT." ? In the Apache Tomcat list I asked the following question: "Can someone suggest to me what Apache and/or other OpenSource products could be integrated to compete with functionally and/or considered in the same category as BEA WebLogic? I don't necessarily need all of what BEA has to offer at this time, however, I would like to know, generally, what it would take to get there without the big $ price tag." Thank You, Anthony On Monday 15 January 2001 15:20, you wrote: On Mon, 15 Jan 2001, Jason Boehle wrote: WL6 has support for EARs. They also support all of the EJB 2.0 spec except for dependent objects. In fact, I am currently using WL6 for development instead of Orion, due to the apparent lack of development going on in the Orion team on EJB 2.0. I had suggested to my boss that we use Orion, as I had been lurking and following it for several months, and saw that it always met the latest specs first, etc. - now I feel dumb for doing so, as they haven't had a new release in several months... Of course, this is a little unfair - weblogic hadn't had a new release for several months, either. They've just had a major release recently, which makes it seem like they're more active than Orion, when that's not necessarily the case. It might be, but that's not implied by the situation at present. For the most part, Orion is still very much ahead of the pack, and
OT: Excellent new EJB 2.0 CMP book available
I apologize that this is off topic, but its probably of interest to everyone here. For anyone interestred in EJB 2.0, there is a great book available at: http://www.mvcsoft.com Its included in their persistence manager product. BTW, that persistence manager is a complete implementation of EJB 2.0 PFD, so if you want to get a head start you can. Even if you don't need their code, the included PDF book is worth more than the $28 they ask for it. (No, I don't have anything to do with them... I just think its a great product that everyone can benefit from). Cheers! Jim
Re: SV: EJB 2.0 EB n--m implemented?
Magnus, thanks very much for the reply. I should know the answer to this by now, but I have been avoidiung Orion specific features in hopes of ending up with a portable J2EE app. So I don't know... Can someone please tell me if its possible to have a many-to-many relationship between two EJB 2.0 entity beans using CMP and using Orion specific features? I would appreciate any help on this... Thanks! Jim --On Thursday, February 08, 2001 8:47 AM +0100 Magnus Rydin [EMAIL PROTECTED] wrote: Hi, no, its not there yet. :( -Ursprungligt meddelande- Frn: Jim Archer [mailto:[EMAIL PROTECTED]] Skickat: den 7 februari 2001 13:57 Till: Orion-Interest mne: EJB 2.0 EB n--m implemented? Hi All... Does anyone know if many to many relationships between EBs is implemented on Orion 1.4.7? I was going to write a bit of code to test it, but my laziness got the better part of me and I was hopeing someone else had already discovered this and could save me a bit of work ;-) Thanks! Jim
Re: Problem with two Orions on same box!!!
In the case of the web server, in the config directory is an XML file in which you set that. Go to Orion's web site and read the installation instructions. The long version tells you exactly what to set. Jim --On Thursday, February 08, 2001 3:32 PM +0530 Mohit Palhan [EMAIL PROTECTED] wrote: I do not have access to two servers, and have installed 2 Orions on the same box, how do I make sure that they do not use the same ports for the RMI server and for the HTTP server?? Please help Mohit Have a nice day :-) *** The information contained in this message (including any attachments) is confidential and may be legally privileged. If you are not the intended recipient, please delete it from your system immediately - any disclosure, copying or distribution thereof or any action taken or omitted to be taken in reliance thereon is prohibited and may be unlawful.AITPL makes no warranty as to the accuracy or completeness of any information contained in this message and hereby excludes any liability of any kind for the information contained herein or for the transmission, reception, storage or use of such information in any way whatsoever. Any opinions expressed in this message are those of the author and do not necessarily reflect the opinions of AITPL. ** *** -- * The information contained in this message (including any attachments) is confidential and may be legally privileged. If you are not the intended recipient, please delete it from your system immediately - any disclosure, copying or distribution thereof or any action taken or omitted to be taken in reliance thereon is prohibited and may be unlawful.AITPL makes no warranty as to the accuracy or completeness of any information contained in this message and hereby excludes any liability of any kind for the information contained herein or for the transmission, reception, storage or use of such information in any way whatsoever. Any opinions expressed in this message are those of the author and do not necessarily reflect the opinions of AITPL. *
EJB 2.0 EB n--m implemented?
Hi All... Does anyone know if many to many relationships between EBs is implemented on Orion 1.4.7? I was going to write a bit of code to test it, but my laziness got the better part of me and I was hopeing someone else had already discovered this and could save me a bit of work ;-) Thanks! Jim
1.4.6 breaks the EJB 2.0 CMP Do OM example
Hi All... I just ran my EJB 2.0 CMP Do OM example through Orion 1.4.6. It breaks with the error pasted below. I just thought I would let everyone know... Jim EmailDo_ORCollection5.java:294: String not terminated at end of line. "n ^ EmailDo_ORCollection5.java:294: Invalid expression statement. "n ^ EmailDo_ORCollection5.java:295: ';' expected. } ^ EmailDo_ORCollection5.java:295: '}' expected. } ^ 4 errors Error compiling file:/D:/Orion-test-apps/Test20CmpDoOM/rel/Sample20EbDoOM-ver001 a/Sample20EbDoOM-ver001a-ejb.jar: Syntax error in source Orion/1.4.6 initialized
1.4.6 also breaks the Test20CmpDo example
Hi All... The Test20CmoDO.zip example, which shows how to have a dependent object in EJB 2.0, is also broken under Orion 1.4.6. I have filed bugzilla reports for both this one and the Test20CmpDoOM.zip example I mentioned earlier. Test20Cmp.zip seems to still work. Jim
Orion 1.4.7 and the EJB 2.0 examples - They all work!
FYI, all three of the EJB 2.0 CMP examples work with Orion 1.4.7. Thanks guys for fixing that so quickly! Jim I shall be telling this with a sigh Somewhere ages and ages hence: Two roads diverged in a wood, and I - I took the one less traveled by, And that has made all the difference. - Robert Frost, 1916
Re: Which version is stable
Depends upon what features your using. Version 1.4.5 broke some EJB 2.0 CMP stuff. You may want to check the bug list and see if there is anything reported that would be a problem for you. Jim --On Tuesday, January 30, 2001 1:14 PM +0100 Randahl Fink Isaksen [EMAIL PROTECTED] wrote: I am running Orion 1.3.8 seems to work, but I am thinking of upgrading. But which version should one upgrade to? - According to www.orionserver.com the new 1.4.5 is both stable and experimental... which sounds a bit like "stable and unstable". R.
RE: EJB 2.0 Dependent object example now available
I beleive it is possible. First, in the cas of a one-to-many design, you will get two tables. One for persons and the other for addresses. I'll have that example ready very soon, probably tonight. Also, I *believe* orion allows you to control the table names and such. Of course, thats a server specific feature. I'll post the 1--n example soon. Jim --On Thursday, January 25, 2001 11:23 AM -0500 Neal Kaiser [EMAIL PROTECTED] wrote: Just ran your tutorial, had no problems at all setting it up with Orion 1.4.5. Thank you, it was very informative. Is it possible to do something like this if it spans multiple tables? What if you had a 1-many relationship and a user could have many addresses. In the database there would be a USERS table and an ADRESSES table. Is that possible with CMP? Any tutorials on that? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jim Archer Sent: Wednesday, January 24, 2001 9:50 PM To: Orion-Interest Subject: EJB 2.0 Dependent object example now available Hello all... Many people have written me requesting I provide an EJB 2.0 CMP example that uses a dependent object. To all who asked, I apologize for the delay. I have sent it to Joe for posting on OrionSupport, and it is right now available at: http://www.archer.net/Test20CmpDo.zip This example has an entity bean to represent a person and a dependent object to represent the person's postal address. There is a one-to-one relationship between the entity bean and its dependent. There will be a similar example with a one-to-many relationship soon. Cheers! Jim
EJB 2.0 with dependent 1 -- n sample available
Hi All... As promised, the EJB 2.0 CMP example with 1 to many EB to dependent relationships is available. Its posted at: http://www.archer.net/test20CmpDoOM.zip Please let me know if you have any problems with it. Jim
Support site down - can I help?
Hi Joe... I noticed that OrionSupport has been down for a few days. If there is a problem, is there anything I can do to help? I have some resoureces available... Jim
EJB 2.0 Dependent object example now available
Hello all... Many people have written me requesting I provide an EJB 2.0 CMP example that uses a dependent object. To all who asked, I apologize for the delay. I have sent it to Joe for posting on OrionSupport, and it is right now available at: http://www.archer.net/Test20CmpDo.zip This example has an entity bean to represent a person and a dependent object to represent the person's postal address. There is a one-to-one relationship between the entity bean and its dependent. There will be a similar example with a one-to-many relationship soon. Cheers! Jim
Re: Support site down - can I help?
OOPS... Sorry list... This was supposed to go to Joe personally... Jim --On Wednesday, January 24, 2001 3:11 PM -0500 Jim Archer [EMAIL PROTECTED] wrote: Hi Joe... I noticed that OrionSupport has been down for a few days. If there is a problem, is there anything I can do to help? I have some resoureces available... Jim
Re: Composite PK classes
Hi Daniel... I believe I have also been unable to make this work. Let me double check. I don't recall the exact problem I had but I think there is one. I'll check... Jim --On Tuesday, January 23, 2001 1:58 PM -0500 Daniel Cardin [EMAIL PROTECTED] wrote: Has anyone managed to build EJB 2.0 applications using Orion, CMP and composite primary keys using a PK class ? I believe I have followed all recommandations but can't seem to make it work. Cheers, Daniel
RE: Is combining Orion and PostgreSQL a good choice
Hi Sach... Do you remember the version of the driver you had to hack? Also, could you share the changes with us? Jim --On Wednesday, January 17, 2001 10:08 AM -0800 Sach Jobb [EMAIL PROTECTED] wrote: We had a problem with either timestamp or date (i can't remember which now) with the default postgres JDBC driver, so we had to hack the driver to make it work right. So if you don't need anything to do with time and you don't need to store large binary data you should be fine. ;) Actually, it works quite well. We deployed a couple of months ago with 33 million records in the database (4 processor, 4GB RAM, Sun Server) and orion on two application boxes (dual processor, 4GB sun servers). It's incredibly fast. Thanks, sach robot6 %s/windows/linux/g On Wed, 17 Jan 2001, Randahl Fink Isaksen wrote: Interesting... but are you stating that without fixing bugs in the JDBC driver for PostgreSQL, it just will not work? If so, I would of course like to hear what you fixed exactly... Yours Randahl -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mike Cannon-Brookes Sent: 17. januar 2001 13:51 To: Orion-Interest Subject: RE: Is combining Orion and PostgreSQL a good choice I'm using PostgreSQL on an application that is about to go live (within the next month). Seems to be working fine in testing so far, we're moving off Sybase 11.0.3.3 on Linux to PostgreSQL (probably 7.1 by the time we go live). I've personally fixed a bug or two in the JDBC driver, but other than that the latest driver seems very solid. I use the default schema (the latest one from Orion has a lot of fixes contributed by myself and others, the original was horrible). Let me know if there are any problems with the latest schema. -mike -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Randahl Fink Isaksen Sent: Wednesday, January 17, 2001 11:01 PM To: Orion-Interest Subject: Is combining Orion and PostgreSQL a good choice I am wondering if using PostgreSQL with Orion would be a good option. So my questions are: 1. Has anyone tried using PostgreSQL with Orion in a real-life application (running for a long period with no errors) - and was it a success? 2. Do you use the default database schema for PostgreSQL that comes with Orion? Yours Randahl
RE: Complex O/R and EJB 2.0 CMP
I have a few examples that are much more complex than the one I wrote on OrionSupport. Let me clean them up and I'll post them here... Jim --On Monday, January 08, 2001 5:45 AM -0800 Darren Pamatat [EMAIL PROTECTED] wrote: --- Konstantin Polyzois [EMAIL PROTECTED] wrote: "Servlet/JDBC is sure looking a bit simpler right now." But of course it is. If there is no concurrency (multiple clients) and if you don't like object-oriented programming. And if you dont plan on building more than a few servlets. What I meant here, is gettin an environment setup and working and being productive. Concurrency issues are not a big deal to handle when you know what you are doing, and you can do object oriented programming with servlets/java classes/ create your own minimal O/R code where necessary or use a o/r mapper lib. I've been doing this stuff for a while now, and it just seems that orion examples and info (when orionsupport is up, its been down for a while) takes you to a point where, if it went a little bit further would save tons of time. From any vendors software solution, it is not just the software, but the documents, examples, third-party support, forums, etc which make or do not make it a productive environment to get started and develop with. My question is, is there any examples anywhere of some complexor code with client code which drives it? Anyone care to post or email some examples? Also, when will orionsupport be back up? Thanks, -Darren "Also, what is the difference in the EJB 2.0 CMP and orion proprietary CMP." I think Orion supports Maps and Sets for dependent objects, the EJB2 (proposed final draft) only mandates support for Sets. Orions implementation does not look complete yet (how could it be when there is no spec?) it lacks EJB-QL, Home-methods and Select-methods (forgive me for errors it has been some time since I read the spec). /korre -Original Message- From: Darren Pamatat To: Orion-Interest Sent: 2001-01-07 20:27 Subject: Complex O/R and EJB 2.0 CMP I've been trying to get started with some O/R stuff with orion, and have gone thru the orion-cmp primer, and the complex-or example. A few problems, is that the orion-cmp primer is very simplistic, and the complex-or example (from orionsupport, which is currently down) does not have any examples, or docs on how to create and use a client application to exercise the ejb cmp entities. Does anyone have any code/examples or info on this? I like the layout of the complex-or example more so than the orion-cmp primer, because it is not required to jar it up, and classes can just be recompiled, and run (if only I could run something against it). Also, what is the difference in the EJB 2.0 CMP and orion proprietary CMP. Servlet/JDBC is sure looking a bit simpler right now. Hopefully, some info and more examples are available to help get an environment setup with CMP EJB's, to work off of. -Darren __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/ __ Do You Yahoo!? Yahoo! Photos - Share your holiday photos online! http://photos.yahoo.com/
Re: Anyone heard from evermind?
More great news, Karl! Thanks very much for your reply! Jim --On Monday, December 11, 2000 12:00 AM +0100 Karl Avedal [EMAIL PROTECTED] wrote: Hello Jim (and everyone else), Thanks! The only change that is planned is the addition of a seperate support license for the ones demanding more support. There's no date set for when this will be available yet. We do not plan any changes to the normal license, neither in cost nor terms. And it will still be free for developers and for non-commercial use. Regards, Karl Avedal Jim Archer wrote: Karl, sounds like great news. Congrats! I'm wondering if any major changes in licensing or pricing policy are coming within the next several or six months? Thanks... Jim --On Thursday, December 07, 2000 1:20 PM +0100 Karl Avedal [EMAIL PROTECTED] wrote: Hello, I thought it was time for some explanation on our silence. Alot of things are happening structually right now to the company. The biggest news is probably that the company is no longer Evermind, but is now called Ironflare AB, which is a new limited corporation. The owners are the same so it is not a takeover or anything like that, but the new company form will enable us to expand faster than the old company. We will announce this officially within a few weeks. This will lead to a few things: 1. The company will become more visible, with a company website and information and not just a product website with product information. 2. The resources of the company will increase. The problem lately has been that non-development takes more and more time as we get more customers. As other resources get available that do more of the business, the core team will be able to focus more on development and bug-fixing. 3. There might still be some time of confusion left. The company structure is not the only change we're going through. The expansion is just starting and as it goes on, resources will initially be spent more on building the organization and hiring the right people than would be necessary if we didn't make the expansion. Without the expansion we would however be lost eventually as we would hit a brick wall without the necessary resources. I will try to keep you posted on these developments and I want to reassure you that we are not gone, but quite the opposite, we are making a move to become more aggressive in the future, but it has made us less visible for some time and has hurt the product development and release cycle, and it is likely to do so from time to time as we go ahead. A new release with a few fixes shouldn't be far away now though. Regards, Karl Avedal
Re: Anyone heard from evermind?
Karl, sounds like great news. Congrats! I'm wondering if any major changes in licensing or pricing policy are coming within the next several or six months? Thanks... Jim --On Thursday, December 07, 2000 1:20 PM +0100 Karl Avedal [EMAIL PROTECTED] wrote: Hello, I thought it was time for some explanation on our silence. Alot of things are happening structually right now to the company. The biggest news is probably that the company is no longer Evermind, but is now called Ironflare AB, which is a new limited corporation. The owners are the same so it is not a takeover or anything like that, but the new company form will enable us to expand faster than the old company. We will announce this officially within a few weeks. This will lead to a few things: 1. The company will become more visible, with a company website and information and not just a product website with product information. 2. The resources of the company will increase. The problem lately has been that non-development takes more and more time as we get more customers. As other resources get available that do more of the business, the core team will be able to focus more on development and bug-fixing. 3. There might still be some time of confusion left. The company structure is not the only change we're going through. The expansion is just starting and as it goes on, resources will initially be spent more on building the organization and hiring the right people than would be necessary if we didn't make the expansion. Without the expansion we would however be lost eventually as we would hit a brick wall without the necessary resources. I will try to keep you posted on these developments and I want to reassure you that we are not gone, but quite the opposite, we are making a move to become more aggressive in the future, but it has made us less visible for some time and has hurt the product development and release cycle, and it is likely to do so from time to time as we go ahead. A new release with a few fixes shouldn't be far away now though. Regards, Karl Avedal
Re: EJB2.0 Generated class uncompilable
You might want to go to: http://www.orionsupport.com And grab the simple EJB 2.0 sample... Jim --On Friday, December 08, 2000 4:02 PM -0500 Peter Pontbriand [EMAIL PROTECTED] wrote: Hello All. We've just written our first pair of 2.0-spec EJBs and are experiencing some really strange problems deploying them. Orion 1.4.4 auto-generates the DB tables for these beans, but then spits out the following message for every CMP field in each EJB: ___ 6. public class FooBean_PersistenceManager22 extends com.foo.components.authorization.bean.FooBean implements ContainerManagedObject -- *** Error: The abstract method "void setBar(java.util.Set $1);", inherited from type "com/foo/components/authorization/bean/FooBean", is not implemented in the non-abstract class "FooBean_PersistenceManager22". Since the type "com/foo/components/authorization/bean/FooBean" was read from a class file, it is possible that it just needs to be recompiled because after having inherited method "void setBar(java.util.Set $1);" from an interface, the method was subsequently removed from that interface. Error compiling file:/C:/orion/applications/foo/admin-ejb.jar: Error in source ___ We're totally at a loss here. What's removing what from what interface? There's no indication in the message of what the problem is in the source. We've already spend an incredible amount of time trying to sort out extremely cryptic deployment error messages with 1.1 and now 2.0-spec CMP Entity EJBs. We're definitely beginning to wonder whether there is any point to CMP at all - it seems like we could have ported BMP Entity EJBs to quite a number of different DBs in the time its taken to try and deal with CMP problems like this. Anybody have any light to on this latest problem? P. Pontbriand Canlink Interactive Technologies Inc.
Re: ejb2: EJB-DO, 1 to many problem
Hi Tim...
I'll take a stab at trying to help with this. I have done a lot of work
with dependent objects.
First, using Orion 1.4.0 I found that unidirectional dependents work as
they should (when an EB has dependents). If you have an EB with dependents
in a 1-to-1 relationship, Orion will create one table and map the fields of
the dependent into the table for the EB. If you have a 1-ri-n relationship,
Orion will create two tables.
I have found that Orion 1.4.0 does work with dependents in a unidirectional
relationship properly. The error your reporting seems to indicate a
descriptor error. Remember that Orion 1.4.0 has a bug in which you must
define the CMR field also as a CMP field (in violation of all EJB 2.0 spec
revisions).
I have also found that Orion 1.4.0 fasils to work properly with
bidirectional dependent relationships. According to Bugzilla, this has been
fixed in Orion 1.4.4 but I have not attempted to test this yet.
If you can tell us what version of Orion your using and post the relevant
portion of your descriptor we can probably offer better assistence.
Jim
--On Friday, November 10, 2000 10:42 AM -0500 Tim Drury
[EMAIL PROTECTED] wrote:
I've gotten EJB-dep obj working for 1-to-1 and
I've gotten EJB-EJB 1-to-1 and 1-to-many working.
But for the life of me, I cannot get EJB-dep obj
working for 1-to-many.
The object model is:
EdiFile(EJB) 1 to N - EdiEnvelope (DO)
This is a unidirectional relationship. I think
someone has been trying bi-directional with no
luck.
The problem manifests itself in two ways. First,
Orion throws an error when it tries to compiles
the stubs/skeletons:
class EdiEnvelope_Dependent0 is an abstract class.
It can't be instantiated.
(well this is obvious; dependent objects are supposed
to be abstract).
Second, the database table for my EJB doesn't contain
_any_ reference to the dependent object. BTW, the
table for the dependent object looks fine.
Thanks for any help,
-tim
Here is my dependent object:
--
package com.tfc.ejb;
import java.rmi.RemoteException;
import javax.ejb.RemoveException;
import java.util.Date;
import java.util.Collection;
import java.util.Iterator;
public abstract class EdiEnvelope implements java.io.Serializable
{
public abstract void setSenderIdQualifier(String s) throws
RemoteException;
public abstract void setSenderId(String s) throws RemoteException;
public abstract void setReceiverIdQualifier(String s) throws
RemoteException;
public abstract void setReceiverId(String s) throws RemoteException;
public abstract void setDate(Date d) throws RemoteException;
public abstract void setVersion(String s) throws RemoteException;
public abstract void setControlNumber(long l) throws RemoteException;
public abstract void setAck(boolean b) throws RemoteException;
public abstract void setNumberOfGroups(int i) throws RemoteException;
public abstract void setTransactionSets(Collection c) throws
RemoteException;
public abstract void setId(String s) throws RemoteException;
public abstract String getSenderIdQualifier() throws RemoteException;
public abstract String getSenderId() throws RemoteException;
public abstract String getReceiverIdQualifier() throws RemoteException;
public abstract String getReceiverId() throws RemoteException;
public abstract Date getDate() throws RemoteException;
public abstract String getVersion() throws RemoteException;
public abstract long getControlNumber() throws RemoteException;
public abstract boolean getAck() throws RemoteException;
public abstract int getNumberOfGroups() throws RemoteException;
public abstract Collection getTransactionSets() throws RemoteException;
public abstract String getId() throws RemoteException;
public String ejbCreateEdiEnvelope() throws RemoteException
{
this.setId( (new java.rmi.server.UID()).toString() );
return null;
}
public void ejbPostCreateEdiEnvelope() { }
public abstract EdiEnvelope deepCopy();
} // end EdiEnvelope
--
Here is my EJB:
--
package com.tfc.ejb;
import javax.ejb.EntityBean;
import javax.ejb.CreateException;
import javax.ejb.RemoveException;
import java.rmi.RemoteException;
import javax.ejb.EntityContext;
import java.util.Date;
import java.util.Iterator;
import java.util.Collection;
public abstract class EdiFileEJB implements EntityBean
{
private EntityContext ec;
// accessors
public void setEntityContext(EntityContext ec) { this.ec = ec; }
public void unsetEntityContext() { ec = null; }
public abstract void setFilename(String s);
public abstract void setDateDownloaded(Date d);
public abstract void setEnvelopes(Collection c);
public abstract void
RE: ejb2: EJB-DO, 1 to many problem
lDo/dependent-name/role-source
!-- --
cmr-field
cmr-field-nameperson/cmr-field-name
cmr-field-typeTest20CmpDoOM.eb.Person/cmr-field-type
/cmr-field
!-- --
/ejb-relationship-role
/ejb-relation
/relationships
assembly-descriptor
security-role
descriptionUsers/description
role-nameusers/role-name
/security-role
/assembly-descriptor
/ejb-jar
--On Friday, November 10, 2000 2:19 PM -0500 Tim Drury
[EMAIL PROTECTED] wrote:
Jim,
Thanks for the quick response. I'm using 1.4 and I've
gotten 1:1 to work. I think my problem may be what
you mentioned about a non-standard CMR field in
ejb-jar.xml. What are you talking about exactly?
In the relationship tag? Here is my relationship
area again:
ejb-relation
ejb-relation-nameEdiFile-EdiEnvelopes/ejb-relation-name
ejb-relationship-role
ejb-relationship-role-nameEdiFile-has-EdiEnvelopes/ejb-relationship-ro
le- name
multiplicityone/multiplicity
role-source
ejb-nameEdiFileEJB/ejb-name
/role-source
cmr-field
cmr-field-nameenvelopes/cmr-field-name
cmr-field-typejava.util.Collection/cmr-field-type
/cmr-field
/ejb-relationship-role
ejb-relationship-role
ejb-relationship-role-nameEdiEnvelopes-belongsto-EdiFile/ejb-relations
hip -role-name
multiplicitymany/multiplicity
role-source
dependent-nameEdiEnvelope/dependent-name
/role-source
cmr-field
cmr-field-nameediFile/cmr-field-name
/cmr-field
/ejb-relationship-role
/ejb-relation
-Original Message-
From: Jim Archer [mailto:[EMAIL PROTECTED]]
Sent: Friday, November 10, 2000 1:14 PM
To: Orion-Interest
Cc: Tim Drury
Subject: Re: ejb2: EJB-DO, 1 to many problem
Hi Tim...
I'll take a stab at trying to help with this. I have done a
lot of work
with dependent objects.
First, using Orion 1.4.0 I found that unidirectional
dependents work as
they should (when an EB has dependents). If you have an EB
with dependents
in a 1-to-1 relationship, Orion will create one table and map
the fields of
the dependent into the table for the EB. If you have a 1-ri-n
relationship,
Orion will create two tables.
I have found that Orion 1.4.0 does work with dependents in a
unidirectional
relationship properly. The error your reporting seems to indicate a
descriptor error. Remember that Orion 1.4.0 has a bug in
which you must
define the CMR field also as a CMP field (in violation of all
EJB 2.0 spec
revisions).
I have also found that Orion 1.4.0 fasils to work properly with
bidirectional dependent relationships. According to Bugzilla,
this has been
fixed in Orion 1.4.4 but I have not attempted to test this yet.
If you can tell us what version of Orion your using and post
the relevant
portion of your descriptor we can probably offer better assistence.
Jim
--On Friday, November 10, 2000 10:42 AM -0500 Tim Drury
[EMAIL PROTECTED] wrote:
I've gotten EJB-dep obj working for 1-to-1 and
I've gotten EJB-EJB 1-to-1 and 1-to-many working.
But for the life of me, I cannot get EJB-dep obj
working for 1-to-many.
The object model is:
EdiFile(EJB) 1 to N - EdiEnvelope (DO)
This is a unidirectional relationship. I think
someone has been trying bi-directional with no
luck.
The problem manifests itself in two ways. First,
Orion throws an error when it tries to compiles
the stubs/skeletons:
class EdiEnvelope_Dependent0 is an abstract class.
It can't be instantiated.
(well this is obvious; dependent objects are supposed
to be abstract).
Second, the database table for my EJB doesn't contain
_any_ reference to the dependent object. BTW, the
table for the dependent object looks fine.
Thanks for any help,
-tim
Here is my dependent object:
--
package com.tfc.ejb;
import java.rmi.RemoteException;
import javax.ejb.RemoveException;
import java.util.Date;
import java.util.Collection;
import java.util.Iterator;
public abstract class EdiEnvelope implements java.io.Serializable
{
public abstract void setSenderIdQualifier(String s) throws
RemoteException;
public abstract void setSenderId(String s) throws
RemoteException;
public abstract void setReceiverIdQualifier(String s) throws
RemoteException;
public abstract void setReceiverId(String s) throws
RemoteException;
public abstract void setDate(Date d) throws RemoteException;
public abstract void setVersion(String s) throws RemoteException;
public abstract void setControlNumber(long l) throws
RemoteException;
public abstract void setAck(boolean b) throws RemoteException;
public abstract void s
RE: ejb2: EJB-DO, 1 to many problem
Tim, I just reviewed your messages again, a bit more carefully. I see your using Orion 1.4 and you have posted your code and descriptors. It looks like you are defineing a *bidirectional* relationship between your EB and dependent. This will fail under Orion 1.4. The example I sent you will fail under 1.4, as it was designed to as a demonstration of the bug. A *unidirectional* relationship will work. Anyhow, I just added a comment to a bit of your descriptor (right below) that will make this a unidirectional relationship. Try that change and if it will deploy. If it does not deploy I'll take some time to look over your code and descriptors when I can, but not right away. I'm just became swamped. Always a crisis! If you need the bidirectional relationship, you'll need to go to 1.4.4, where this is supposed to work, although I have not tested it yet. ejb-relation ejb-relation-nameEdiFile-EdiEnvelopes/ejb-relation-name ejb-relationship-role ejb-relationship-role-nameEdiFile-has-EdiEnvelopes/ejb-relationship-role - name multiplicityone/multiplicity role-source ejb-nameEdiFileEJB/ejb-name /role-source cmr-field cmr-field-nameenvelopes/cmr-field-name cmr-field-typejava.util.Collection/cmr-field-type /cmr-field /ejb-relationship-role ejb-relationship-role ejb-relationship-role-nameEdiEnvelopes-belongsto-EdiFile/ejb-relationshi p -role-name multiplicitymany/multiplicity role-source dependent-nameEdiEnvelope/dependent-name /role-source !-- This cmr-field tag makes this a bidirectional relationship that will fail under Orion 1.4 cmr-field cmr-field-nameediFile/cmr-field-name /cmr-field -- /ejb-relationship-role /ejb-relation --On Friday, November 10, 2000 2:54 PM -0500 Tim Drury [EMAIL PROTECTED] wrote: I did put that in. In fact, it was your examples that I based all my development on :) I just don't see any differences between your descriptor file and mine. -tim -Original Message- From: Jim Archer [mailto:[EMAIL PROTECTED]] Sent: Friday, November 10, 2000 2:31 PM To: Tim Drury; Orion-Interest Subject: RE: ejb2: EJB-DO, 1 to many problem Hi Tim... No, I didn't mean in the relationship tag. Sorry for the confusion. My fault entirely. I meant in the entity tag. The descriptor I pasted below is an example of one which fails to deploy on Orion 1.4.0 because of a now fixed Orion bug (I have not yet retested but Bugzilla says its fixed in 1.4.4). However, if you exampne the part that defines the entity beans you'll see what I mean. There is a comment you can't miss. Let us know if it works and if not we'll look at other things. Jim ?xml version="1.0"? !DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_2_0.dtd" ejb-jar descriptionTest Sample EJB 2.0 EB/description display-namePerson/display-name enterprise-beans entity cmp-version2.0/cmp-version descriptionPerson/description display-nameTest20CmpDoOM.eb.Person/display-name ejb-nameTest20CmpDoOM.eb.PersonEJB/ejb-name homeTest20CmpDoOM.eb.PersonHome/home remoteTest20CmpDoOM.eb.Person/remote ejb-classTest20CmpDoOM.eb.PersonEJB/ejb-class persistence-typeContainer/persistence-type prim-key-classjava.lang.String/prim-key-class reentrantTrue/reentrant !-- These lines should not be required (according to the spec) -- !-- but without them deployment fails -- cmp-fieldfield-nameaddrDo/field-name/cmp-field cmp-fieldfield-nameemailDos/field-name/cmp-field cmp-fieldfield-nameuserId/field-name/cmp-field cmp-fieldfield-namefirstName/field-name/cmp-field cmp-fieldfield-namelastName/field-name/cmp-field primkey-fielduserId/primkey-field /entity /enterprise-beans dependents dependent dependent-nameaddrDo/dependent-name dependent-classTest20CmpDoOM.eb.AddrDo/dependent-class cmp-fieldfield-namestreet/field-name/cmp-field cmp-fieldfield-namecity/field-name/cmp-field cmp-fieldfield-namestate/field-name/cmp-field cmp-fieldfield-namezip/field-name/cmp-field /dependent dependent dependent-nameemailDo/dependent-name dependent-classTest20CmpDoOM.eb.EmailDo/dependent-class
RE: ejb2: EJB-DO, 1 to many problem
OK Tim. Let me know if you don't find it by some time this evening and I can look it over this weekend. All I ask is that if you do find it you let me know so I can not put time in to it unnecesserally. I do have the PD1 spec and I'll send it to you, but I can't do so for an hour or so. You will find very minor changes, like the removal of the deepcopy() method decloration (it was required in pd1, removed in pd2). Jim --On Friday, November 10, 2000 3:32 PM -0500 Tim Drury [EMAIL PROTECTED] wrote: I took out the bi-directional stuff (I had actually tried both ways). No luck. I went ahead and upgraded to 1.4.4 and it still gave me the same problem. There must be an error in my code (something not abstract when it should be or visa versa) or something wrong with ejb-jar.xml. BTW, 1.4.4 still requires you create a cmp-field for your dependent object collection. ALSO: do you (or anyone on the list) have a copy of the ejb 2.0 pd1 spec? I have pd2 and pdFinal, but not the one that Orion is based on. Maybe that would help me find my problem. I couldn't find pd1 on the sun site. -tim -Original Message- From: Jim Archer [mailto:[EMAIL PROTECTED]] Sent: Friday, November 10, 2000 3:16 PM To: Tim Drury; Orion-Interest Subject: RE: ejb2: EJB-DO, 1 to many problem Tim, I just reviewed your messages again, a bit more carefully. I see your using Orion 1.4 and you have posted your code and descriptors. It looks like you are defineing a *bidirectional* relationship between your EB and dependent. This will fail under Orion 1.4. The example I sent you will fail under 1.4, as it was designed to as a demonstration of the bug. A *unidirectional* relationship will work. Anyhow, I just added a comment to a bit of your descriptor (right below) that will make this a unidirectional relationship. Try that change and if it will deploy. If it does not deploy I'll take some time to look over your code and descriptors when I can, but not right away. I'm just became swamped. Always a crisis! If you need the bidirectional relationship, you'll need to go to 1.4.4, where this is supposed to work, although I have not tested it yet. ejb-relation ejb-relation-nameEdiFile-EdiEnvelopes/ejb-relation-name ejb-relationship-role ejb-relationship-role-nameEdiFile-has-EdiEnvelopes/ejb-rela tionship-role - name multiplicityone/multiplicity role-source ejb-nameEdiFileEJB/ejb-name /role-source cmr-field cmr-field-nameenvelopes/cmr-field-name cmr-field-typejava.util.Collection/cmr-field-type /cmr-field /ejb-relationship-role ejb-relationship-role ejb-relationship-role-nameEdiEnvelopes-belongsto-EdiFile/ej b-relationshi p -role-name multiplicitymany/multiplicity role-source dependent-nameEdiEnvelope/dependent-name /role-source !-- This cmr-field tag makes this a bidirectional relationship that will fail under Orion 1.4 cmr-field cmr-field-nameediFile/cmr-field-name /cmr-field -- /ejb-relationship-role /ejb-relation --On Friday, November 10, 2000 2:54 PM -0500 Tim Drury [EMAIL PROTECTED] wrote: I did put that in. In fact, it was your examples that I based all my development on :) I just don't see any differences between your descriptor file and mine. -tim -Original Message- From: Jim Archer [mailto:[EMAIL PROTECTED]] Sent: Friday, November 10, 2000 2:31 PM To: Tim Drury; Orion-Interest Subject: RE: ejb2: EJB-DO, 1 to many problem Hi Tim... No, I didn't mean in the relationship tag. Sorry for the confusion. My fault entirely. I meant in the entity tag. The descriptor I pasted below is an example of one which fails to deploy on Orion 1.4.0 because of a now fixed Orion bug (I have not yet retested but Bugzilla says its fixed in 1.4.4). However, if you exampne the part that defines the entity beans you'll see what I mean. There is a comment you can't miss. Let us know if it works and if not we'll look at other things. Jim ?xml version="1.0"? !DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_2_0.dtd" ejb-jar descriptionTest Sample EJB 2.0 EB/description display-namePerson/display-name enterprise-beans entity cmp-version2.0/cmp-version descriptionPerson/description display-nameTest20CmpDoOM.eb.Person/display-name ejb-nameTest20CmpDoOM.eb.PersonEJB/ejb-name homeTest20CmpDoOM.eb.PersonHome/home remoteTest20CmpDoOM.eb.Person/remote ejb-classTest20CmpDoOM.eb.PersonEJB/ejb-class persistence-typeContainer/persistence-type prim-key-classj
Re: EJB SLSB Question
First, you are free to have seperate client threads access the same instance of a SLSB via its remote interface. This will work fine. However, I don't know why you would want to do that. One of the nice things the EJB server is supposed to do for you is to manage the life cycle of its beans. You are seeking to defeat that capability, which will reduce the performance of your app. SLSBs are passed seemelessely from app to app by the server so that a small number of them can serve a very large number of clients. You say your client wants to "cache" the bean. Does this mean that you are assigning some state to the bean you want to maintain or top persist? If so, this is not an appropriate use of a *stateless* session bean. I recomend using a *statefull* session bean. Good luck. Jim --On Wednesday, November 08, 2000 11:05 PM -0500 Vidur Dhanda [EMAIL PROTECTED] wrote: I can't find a _definite_ answer to my question. Hopefully, someone can give me some pointers. Is it legal, per EJB 1.1, for multiple client threads to access a SLSB? Here's why this is important for me. Apparently, there is no portable way for a SLSB to tell a client that it has timed out. Hence, if a client caches a SLSB, it is prone to some "random" error. So, I figured, I will write a "keep-alive" thread and wrap the SLSB in an application object as a delegate. And in the SLSB, I will implement a no-op - ping(). Now, there's the possibility, that the SLSB will be in a method call when the keep-alive thread decides to do a ping. DO I need to guard against that? Thanks, Vidur -- Vidur Dhanda Active Solutions tel: 617/566-1252 [EMAIL PROTECTED] www.active-solutions-inc.com
Re: ejb 2.0 relations in orion 1.4.3 broken ?
EEK! Axel, I have not yet tried to verify this and am not dure how to work around it, but if you are sure please Bugzilla it as soon as possible. I was just reviewing the bug list and saw that Magnus seems to be making excellent progress in cleaning up the EJB 2.0 persistence manager related bugs. Maybe if you get this one logged quickly, he can throw a fix in for it. Jim --On Wednesday, November 08, 2000 6:28 PM +0100 Axel Grossmann [EMAIL PROTECTED] wrote: The current ATM example uses EJB 2.0 definitions of ont-to-many relationships (account_owner - account) . When I deployed it on orion 1.4.3 it workes quite well until I added some accounts. After shutting down orion and re-login all accounts are lost. A quick look into the hsql file (.script) revealed that there was no INSERT statement for the ACCOUNTOWNER_ACCOUNTS table at all, where the set-mapping between the AccountOwner and Account bean should happen. Any idea, or maybe an example how I can work around it by using orion-ejb-jar.xml ? Thank you in advance, Axel.
RE: What's new? - Where is 1.4.2??
Actually, no, you can't always do this, for two reasons. First, on a Unix system, we the orion user the permission to write to itself. This is a basic security procedure. As a xonsequence, autoupdate won't work. Second, although I may be able to do this, I may not want to. There is risk in grabbing the newest experimental server and I'm not always willing to accept that risk. If things are working for me and I have a tight deadline, I prefer not to update unless there is a fix or an enhansement I need. Therefore, I prefer to check the changes.txt file first. Jim --On Wednesday, November 08, 2000 5:17 PM +0100 Runar Svendsen [EMAIL PROTECTED] wrote: You can always get the latest version of Orion by running java -jar autoupdate.jar in the orion dir. Runar. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jim Archer Sent: 7. november 2000 20:15 To: Orion-Interest Cc: Kesha Sibilev Subject: Re: What's new? - Where is 1.4.2?? Where can we even get 1.4.2? The web site shows the latest experimental is still 1.4.0 and when I bypass that and go to the unpacked version that has the changes.txt file from 1.4.0. Thanks... Jim --On Tuesday, November 07, 2000 12:02 PM -0500 Kesha Sibilev [EMAIL PROTECTED] wrote: Does anybody know what is new in the 1.4.2 version of orion server? kesha
RE: newsgroup forum
Except, of course, for those of us who can't access a news server through our company firewalls. For us, it would be a major headache... Jim --On Monday, November 06, 2000 12:47 PM -0800 "Duffey, Kevin" [EMAIL PROTECTED] wrote: I agree! Using a newsgroup is a grand idea! Sure would make the threads alot easier to navigate. -Original Message- From: James Hays [mailto:[EMAIL PROTECTED]] Sent: Monday, November 06, 2000 11:21 AM To: Orion-Interest Subject: newsgroup forum Would it be possible or in enough peoples interest to put this list serv in a newsgroup forum. For new people coming on with Orion, and others just wanting to search through the information, this method has become very exhaustive and message threads utilized by newsgroups would help eliminate this. Is there any other interest in moving this information to a newsgroup forum? Scott, is this possible or feasible? James
RE: What's new?
Thanks, everyone, for the heads up! I guess I'll be waiting for 1.4.3! Jim --On Tuesday, November 07, 2000 3:31 PM -0500 Russ White [EMAIL PROTECTED] wrote: Updated and get same wrapper exception. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Robert Krueger Sent: Tuesday, November 07, 2000 2:15 PM To: Orion-Interest Subject: RE: What's new? At 13:45 07.11.00 , you wrote: How do you get 1.4.2? autoupdate, it's been there only for a few hours. robert -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Robert Krueger Sent: Tuesday, November 07, 2000 12:38 PM To: Orion-Interest Subject: Re: What's new? At 12:02 07.11.00 , you wrote: Does anybody know what is new in the 1.4.2 version of orion server? I get syntax errors compiling the generated wrappers for entities with complex pks. robert kesha (-) Robert Krüger (-) SIGNAL 7 Gesellschaft für Informationstechnologie mbH (-) Brüder-Knauß-Str. 79 - 64285 Darmstadt, (-) Tel: 06151 665401, Fax: 06151 665373 (-) [EMAIL PROTECTED], www.signal7.de (-) Robert Krüger (-) SIGNAL 7 Gesellschaft für Informationstechnologie mbH (-) Brüder-Knauß-Str. 79 - 64285 Darmstadt, (-) Tel: 06151 665401, Fax: 06151 665373 (-) [EMAIL PROTECTED], www.signal7.de
RE: error logs - where are they?
John, I don't know for sure. If you didn't find anything in the Orion logs, did you look in the application specific logs, under Orion/application-deployments/myapp ??? Other than that, I have nothing more to suggest. Sorry. Jim --On Tuesday, October 31, 2000 9:44 AM + John Miller [EMAIL PROTECTED] wrote: Jim, Thanks for the suggestion but I don't think that is the problem. I do sometimes get compilation errors displayed in my browser, but not always. Is there no Orion logging facility for things like this? Johnny -Original Message- From: Jim Archer [mailto:[EMAIL PROTECTED]] Sent: Tuesday, October 31, 2000 5:02 AM To: Orion-Interest Cc: John Miller Subject: Re: error logs - where are they? John, one possibility is that if your using Microsoft Internet Explorer, you have the "display friendly error messages" option enabled and, as a result, the real error from Orion is being hidden by the browser. If this is the case, you'll be a happy camper after disabling that option. I sure was! Jim --On Monday, October 30, 2000 6:01 PM + John Miller [EMAIL PROTECTED] wrote: I am trying to find some indication of JSP compilation errors and cannot locate them in any of the Orion log files. On several occasions I have got a 500 error and could not locate a log of what might be generating this error or any indication of what might be causing this. Does anyone know where I should be looking, or how I might configure Orion to log these JSP compilation errors? Thanks, Johnny
Re: Does Orion have a database access ejb/bean creation tool?
Keith, I don't think Orion ships with such a tool. However, I do believe CocoBase does this. Have a look at: http://www.thoughtinc.com/ Jim --On Monday, October 27, 2003 7:14 AM -0500 Keith Kwiatek [EMAIL PROTECTED] wrote: Hello Does Orion have a tool that will allow you to generate code for a a ejb/bean by simply pointing it at a set of database tables? Anything out there that will do it? Keith
Re: HIGH PRIORITY:Contact Information??????
Try [EMAIL PROTECTED] Maybe if you put something in the subject line like "I WANT TO GIVE YOU MONEY" it will get their attention :-) Good luck! Jim --On Monday, October 30, 2000 5:58 PM -0700 J Davis [EMAIL PROTECTED] wrote: Does anyone have any contact information for Orion. We have been trying to contact them for over two weeks about purchasing and licenses, and no one has gotten back to us. The seem to only have an E-mail address for sales on their site and we cannot find any sort of phone number or other e-mail that will work. Any help here would be greatly appreciated. Orion has been by far the fastest, smoothest EJB server we have found for it's cost and we want to purchase it. Unfortuanately if we cannot get a hold of anyone we will have to take our business elsewhere. Thanx Greg
Re: Session beans don't get removed
Fabio, thats not necesserally important. Many servers keep session beans lieing around to avoide the performance penality of creating them when they are needed. They are frequently moved from quickly client to client inside the container. I don't know how Orion handles this specifficially, but its unlikely something to worry about. But I could be wrong ;-) Jim --On Monday, October 30, 2000 6:41 PM + Fabio Silva [EMAIL PROTECTED] wrote: Hi there, When I have migrated from Orion 1.1.24 to Orion 1.4.0, My session beans which after a short while of inactivity were removed from the container, stopped doing that... The ejbRemove method isn't getting called anymore. Anyone has ideas? Thanks in advance, Fabio
Re: Using JMS with auto-started client
If you have tried to solve it and can not, go ahead and file a bug report on it. The Orion team members have pointed out that they frequently don't read every message on this list and the preferred method of communication in a case like this is Bugzilla. Good luck! Jim --On Monday, October 30, 2000 11:55 AM -0500 Vidur Dhanda [EMAIL PROTECTED] wrote: Well, that's good (in a bad way). At least I'm not the only one to have experienced this. Unfortunately, I can't use message-driven beans (restricted to EJB1.1, for now). Memo to Orion team: could you please respond to this. I've sent email to support regarding this. I'm hesitant to file this as a bug report since I haven't verified that it isn't a problem with my approach/configuration. Vidur Arved Sandstrom wrote: Funny you should bring this up. I wanted a JMS listener as a "service", and in order to keep it more compliant with most app servers, the first thing I tried was exactly what you describe, with the same results. Eventually I went with a message-driven bean, even if that only avoided the problem. Arved Sandstrom -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Vidur Dhanda Sent: Saturday, October 28, 2000 4:46 PM To: Orion-Interest Subject: Using JMS with auto-started client Hello, In my application.xml I have a module block and in orion-application.xml I have a client-module block with auto-start=true. This correctly starts up some application code along with the orion server. One of the classes that are started, subscribes to a JMS queue. It is able to get a connection factory, create a subscriber etc. but _never_ gets any messages. When I run the same class from the command-line and not have orion auto-start it, it gets messages fine. Actually, I'm rather impressed with the speed with which messages are delivered. How do I understand this further? Since the code runs fine when not auto-started and when auto-started it doesn't throw any exceptions, I'm assuming this is a problem with my configuration. Can anyone help me with fix it, please. Thanks, Vidur
Re: error logs - where are they?
John, one possibility is that if your using Microsoft Internet Explorer, you have the "display friendly error messages" option enabled and, as a result, the real error from Orion is being hidden by the browser. If this is the case, you'll be a happy camper after disabling that option. I sure was! Jim --On Monday, October 30, 2000 6:01 PM + John Miller [EMAIL PROTECTED] wrote: I am trying to find some indication of JSP compilation errors and cannot locate them in any of the Orion log files. On several occasions I have got a 500 error and could not locate a log of what might be generating this error or any indication of what might be causing this. Does anyone know where I should be looking, or how I might configure Orion to log these JSP compilation errors? Thanks, Johnny
Bug 153 filed for dependent object bi relationships failing on EJB2.0
And I just filed bug 153 reporting that EJB 2.0 dependent object bidirectional relationships fail. I attached a sample program to the bug for anyone who would like to try it out for themselves. Jim --On Monday, October 30, 2000 3:58 AM -0500 Jason Rimmer [EMAIL PROTECTED] wrote: I've filed a few bugs with Bugzilla (149, 150, and 151) regarding a null pointer exception with rollback, lack of persistent functionality, and lack of client_acknowledgement functionality respectively. If 150 and 151 are resolved then the JMS implementation will at least be functional. Compliance would seem to be a ways off. Note that non-critical bug number 149's already been taken care of. -- Jason Rimmer [EMAIL PROTECTED] - Original Message - From: "Jason Rimmer" [EMAIL PROTECTED] To: "Orion-Interest" [EMAIL PROTECTED] Sent: Saturday, October 28, 2000 10:42 PM Subject: JMS implementation, is it for real? Is Orion's JMS implementation for real? While it supports the simplistic behavior as demonstrated by the chat and coffeemaker demo it doesn't appear to support much else. JMS parts I can't get working: o Transactions. Doesn't seem to matter what you call: commit, rollback, etc. Doesn't make a difference. o Persistence: Make the change in the jms.xml to define a queue's persistent-file, set the message delivery mode to persistent, watch it get ignored. Has anyone had much luck with this? Perhaps SwiftMQ is the answer here (even though I want to use the MessageDrivenBeans). -- Jason Rimmer [EMAIL PROTECTED]
Re: rumors
Except that neither of those products have any portion of EJB 2.0 released. We are building on EJB 2.0 in teh hope that by the time we are done we'll see the spec final and Orion supporting it. Jim --On Monday, October 27, 2003 7:52 AM -0500 Keith Kwiatek [EMAIL PROTECTED] wrote: Probably not... but you know sooner or later someone is going to buy Orion... and the product price will NOT remain anywhere near $1500 OR be "free" to non-commercial projects !! I like Orion, but for projects on a budget, I think it is safer and less costly to maybe go with http://www.ejboss.org/ or http://www.evidian.com/jonas/index.htm. These are dedicated "open source" ejb servers hh if only Orion would open source. Admittedly, I don't know how the above ejb servers compare to orion. I know they don't have servlets/jsp... but then there is the open source free resin... Keith - Original Message - From: Frank Kettenbeil [EMAIL PROTECTED] To: Orion-Interest [EMAIL PROTECTED] Sent: Friday, October 27, 2000 4:51 AM Subject: rumors is this a rumor or a joke ? just found it on bugzilla of Orionserver.com... as a headline "BEA Closes Acquisition of Orion - The transaction is valued at approximately DM 582 million (US$283 million). "
Anyone using Interbase in production?
Does anyone here have any experience with Interbase in a production environment? We are trying to decide which database to deploy in production. Since we are a very low budget operation, we are looking at Open Source, but somehow missed this one. Our most important requirements are stability, transaction support, a solid JDBC driver (for use with an EJB server) and online backup capability. Any experiences people can offer would be appreciated, especially in a Linux environment. Thanks! Jim --On Friday, October 27, 2000 11:46 AM +0200 Jonas Larsson [EMAIL PROTECTED] wrote: You could always use Interbase which now is opensource.. http://www.interbase.com - Original Message - From: Laufer, Michael To: Orion-Interest Sent: Friday, October 27, 2000 10:41 AM Subject: MYSQL, Orion, EJB and transactions ?? Hi there, I know that the question has been discussed here before, but I'm still a little confused about using MYSQL together with Orion. I've just downloaded mysql (version 3.23.22 beta) and the manual announces that mysql is now supporting transactions. If I understood it correctly, that would mean, that it should be possible to use mysql with entity beans. Am I right ?? What's confusing to me is the fact, that I only find news in mailing-list, that mysql is not supporting transactions. So I don't really now, if I can use mysql for entity beans. If not, which database would you suggest ?? It should work on NT and not be the most expensive one as I use it 'only' for writing my Master's Thesis. Thanks in advance, Michel
Re: Servlet class folder
If your running Microsoft IE as your browser, be sure to turn off the "friendly error messages" option in that browser. Then, you'll get a good error message from Orion that will help you diagnose your problem. --On Thursday, October 26, 2000 11:53 PM -0700 Yi Su [EMAIL PROTECTED] wrote: Hi all, I've successfully deployed an web application to orion server. I have the following file structure: e:\myapp\META-INF\application.xml e:\myapp\myapp-web\WEB-INF\web.xml e:\myapp\myapp-web\WEB-INF\classes\pack\Test.class However, the orion server forces me to put my Test.class (pack\Test.class) under \orion\default-web-app/WEB-INF/classes. Otherwise the server throws me "500 Internal Server Error" error message. I follow the way of depolying in orion-primer, but my application doesn't have EJB module. Can someone please help me to solve the problem as putting classes under orion default-web-app does give me trouble. I must miss something. Thank you. Yeoman __ Do You Yahoo!? Yahoo! Messenger - Talk while you surf! It's FREE. http://im.yahoo.com/
RE: Can't call an EJB from Within another EJB
Hi Kevin... I have apps in which a servlet creates a stateless session bean that in turn creates an entity bean (or finds one that exists). It runs fine. My guess is that you have a deployment descriptor error if you get a nameing exception. Cjheck all your EJB-REF tags and remember that they are scoped to the bean in which they exist. If you want, for example, to access a PersonEB from two seperate beans, each of those seperate beans needs an EJB-REF entry within its definition for that PersonEB. As for EJB 1.1 CMP being very limited, yes it is. Very limited (as you said). This is why third party OR Mapping tools like CocoBase have become extremely popular. With them, you define your relationship schema and it makes BMP beans for you. But don't dispair! You have several options. First, use BMP instead. Next, CocoBase (and TopLink, a similar product) cost one heck of a lot less then that testing tool you use for the performance tests (and we all know how much venture money you guys have - grin). The best solution (and the riskiest right now) is to use EJB 2.0. This has a tremendousely powerfull scheme for modeling complex relationships. We are developing for EJB 2.0 CMP in hopes of the spec going final and Orion supporting it fully soon. Hopefully, we will win that bet. If we don't, well... let's just say that the bleeding edge will leave us with a blood pressure of zero over zero. Jim --On Thursday, October 26, 2000 12:14 PM -0700 "Duffey, Kevin" [EMAIL PROTECTED] wrote: I HAVE THE SAME PROBLEM!!! I was about to write an email to the list..hopefully someone else can answer this. Its pissing me off. My problem is that EJB A uses EJB B, but my servlet, when it tries to get EJB A, throws the naming exception. The code in EJB A hasn't even ran yet..and the stack trace says it can't find EJB B! That is strange to me on why if the code in EJB A that uses B isn't even running yet..just when the object is trying to be found, that it says it can't find EJB B. Must be some mechanism of EJB containers that makes sure they all exist. My EJB A does a JNDI call to java:comp/env/ejb/Test and that should work according to the ejb book I have. That is how a session bean uses an entity bean supposedly. From what I read, a session bean (or I suppose any ejb) must use a JNDI lookup for every bean it wants to use. God forbid if I had a bean that needed to use 50 other beans! Isn't there a way to simplify this process? Also, it appears EJB 1.1 entity CMP stuff is very limited..VERY limited. I can't have any type of joins. How then is a join done? Does EJB A (session) that uses two entities, with entity A having a join to entity B..does this have to be done in code? You have to get all the entities of both A and B, then in code do a loop through all As and on each iteration do a loop through all B's and if the fields of both that are in the "query" match, store that in a vector, then return that result? That seems like a whole lot of code just to do a simple one to many join of two tables. It's enough to make me use standard JDBC sql, instead of entity CMP. -Original Message- From: J Davis [mailto:[EMAIL PROTECTED]] Sent: Wednesday, October 25, 2000 10:21 AM To: Orion-Interest Subject: Can't call an EJB from Within another EJB We have gotten our Orion server(1.3.8) to work with EJBs on a singular level(i.e. we can call EJB A, B or C and it works fine.) But If one of our EJB's tries to call another(i.e. A calls B) A throws a naming exception that it can't find the EJB reference when doing a jndi lookup. Is there a dependency tag or something within one of the XML files that denotes EJB dependencies on one another? I'm sure this is something simple, but it is getting annoying.
How to learn EJB 2.0 (was: Can't call an EJB from Within anotherEJB)
Hi Kevin... Currently, the only good source of info on how to develop for EJB 2.0 is the spec. But thats not so bad. The spec is very well written and has examples of code and descriptors. I will send you a 2.0 CMP example off list (I sent it off to Joe for inclusion on Orion Support, but it has not made it up there yet). You can download the spec in PDF format from Sun. A bit of warning; it's about 530 pages long and has no fluff! I printed it double side on 3 hole punch and its a few inches. That said, it sounds worse than it is. Read chapter 9 several times. This is about 110 pages long and covers CMP in EJB 2.0 (including relationships and dependent class objects). After reading it, you'll know what can be done and have a good idea how to do it. Also, if you go to http://www.ejbnow.com there is a link to an article wrtten by Richard Monson-Haefel that covers the changes from EJB 1.1 to 2.0 (although this article is a little out of date, it is almost completely correct still). Read some of that, go through the example, then feel free to post your questions here. There are several of us (at least) active in 2.0 development and I expect you'll get your questions answered. In addition to big CMP improvements you'll see other nice enhancements, in particular the ability to use JMS for asynchronus actions. I feel 2.0 is a huge improvement. WARNING WILL ROBINSON (dryer vent arms waveing, lights flashing) But be warned! The current version of the EJB 2.0 spec is public draft 2 and will probably change at least a little or maybe alot (probably only a little, though) before it is final. Further, be aware that only Orion and Weblogic have any portion of EJB 2.0 spec implemented. It could be as long as 2001 Q2 before you see servers with full EJB compliance (assuming the spec goes final this year). Good luck! Jim --On Friday, October 27, 2000 3:48 PM -0700 "Duffey, Kevin" [EMAIL PROTECTED] wrote: Hi Jim (all), Thanks for the informative reply. Since what I am working on wont be in production for at least 3 or 4 months, I think I would rather start using EJB 2.0 capabilities. The problem is, every book on the market is all EJB 1.1..so how do you learn what you can do with EJB 2.0, how to make the calls, lookups, mappings, etc. The spec is almost certainly geared towards vendors, and its not an easy read..not to mention short! Can you point me to any docs, tutorials, etc that explain EJB 2.0, the differences, etc? Thanks. -Original Message----- From: Jim Archer [mailto:[EMAIL PROTECTED]] Sent: Friday, October 27, 2000 2:59 PM To: Orion-Interest Cc: Duffey, Kevin Subject: RE: Can't call an EJB from Within another EJB Hi Kevin... I have apps in which a servlet creates a stateless session bean that in turn creates an entity bean (or finds one that exists). It runs fine. My guess is that you have a deployment descriptor error if you get a nameing exception. Cjheck all your EJB-REF tags and remember that they are scoped to the bean in which they exist. If you want, for example, to access a PersonEB from two seperate beans, each of those seperate beans needs an EJB-REF entry within its definition for that PersonEB. As for EJB 1.1 CMP being very limited, yes it is. Very limited (as you said). This is why third party OR Mapping tools like CocoBase have become extremely popular. With them, you define your relationship schema and it makes BMP beans for you. But don't dispair! You have several options. First, use BMP instead. Next, CocoBase (and TopLink, a similar product) cost one heck of a lot less then that testing tool you use for the performance tests (and we all know how much venture money you guys have - grin). The best solution (and the riskiest right now) is to use EJB 2.0. This has a tremendousely powerfull scheme for modeling complex relationships. We are developing for EJB 2.0 CMP in hopes of the spec going final and Orion supporting it fully soon. Hopefully, we will win that bet. If we don't, well... let's just say that the bleeding edge will leave us with a blood pressure of zero over zero. Jim --On Thursday, October 26, 2000 12:14 PM -0700 "Duffey, Kevin" [EMAIL PROTECTED] wrote: I HAVE THE SAME PROBLEM!!! I was about to write an email to the list..hopefully someone else can answer this. Its pissing me off. My problem is that EJB A uses EJB B, but my servlet, when it tries to get EJB A, throws the naming exception. The code in EJB A hasn't even ran yet..and the stack trace says it can't find EJB B! That is strange to me on why if the code in EJB A that uses B isn't even running yet..just when the object is trying to be found, that it says it can't find EJB B. Must be some mechanism of EJB containers that makes sure they all exist. My EJB A does a JNDI call to java:comp/env/ejb/Test and that should work according to the ejb book I have. That i
Re: How to learn EJB 2.0 (was: Can't call an EJB from Withinanother EJB)
EEK! No sooner do I send this note than I see I was wrong on two counts. First, Sun yesterday released the "Proposed Final" version of the EJB 2.0 spec. Kevin, grab that one instead of public draft 2, of course. I'm glad to be wrong! This is great news! Next, Orion and Weblogic are not the only two servers with some EJB 2.0 support. Kevin, check out http://www.theserverside.com for details. Cheers! Jim --On Friday, October 27, 2000 8:17 PM -0400 Jim Archer [EMAIL PROTECTED] wrote: Hi Kevin... Currently, the only good source of info on how to develop for EJB 2.0 is the spec. But thats not so bad. The spec is very well written and has examples of code and descriptors. I will send you a 2.0 CMP example off list (I sent it off to Joe for inclusion on Orion Support, but it has not made it up there yet). You can download the spec in PDF format from Sun. A bit of warning; it's about 530 pages long and has no fluff! I printed it double side on 3 hole punch and its a few inches. That said, it sounds worse than it is. Read chapter 9 several times. This is about 110 pages long and covers CMP in EJB 2.0 (including relationships and dependent class objects). After reading it, you'll know what can be done and have a good idea how to do it. Also, if you go to http://www.ejbnow.com there is a link to an article wrtten by Richard Monson-Haefel that covers the changes from EJB 1.1 to 2.0 (although this article is a little out of date, it is almost completely correct still). Read some of that, go through the example, then feel free to post your questions here. There are several of us (at least) active in 2.0 development and I expect you'll get your questions answered. In addition to big CMP improvements you'll see other nice enhancements, in particular the ability to use JMS for asynchronus actions. I feel 2.0 is a huge improvement. WARNING WILL ROBINSON (dryer vent arms waveing, lights flashing) But be warned! The current version of the EJB 2.0 spec is public draft 2 and will probably change at least a little or maybe alot (probably only a little, though) before it is final. Further, be aware that only Orion and Weblogic have any portion of EJB 2.0 spec implemented. It could be as long as 2001 Q2 before you see servers with full EJB compliance (assuming the spec goes final this year). Good luck! Jim --On Friday, October 27, 2000 3:48 PM -0700 "Duffey, Kevin" [EMAIL PROTECTED] wrote: Hi Jim (all), Thanks for the informative reply. Since what I am working on wont be in production for at least 3 or 4 months, I think I would rather start using EJB 2.0 capabilities. The problem is, every book on the market is all EJB 1.1..so how do you learn what you can do with EJB 2.0, how to make the calls, lookups, mappings, etc. The spec is almost certainly geared towards vendors, and its not an easy read..not to mention short! Can you point me to any docs, tutorials, etc that explain EJB 2.0, the differences, etc? Thanks. -Original Message----- From: Jim Archer [mailto:[EMAIL PROTECTED]] Sent: Friday, October 27, 2000 2:59 PM To: Orion-Interest Cc: Duffey, Kevin Subject: RE: Can't call an EJB from Within another EJB Hi Kevin... I have apps in which a servlet creates a stateless session bean that in turn creates an entity bean (or finds one that exists). It runs fine. My guess is that you have a deployment descriptor error if you get a nameing exception. Cjheck all your EJB-REF tags and remember that they are scoped to the bean in which they exist. If you want, for example, to access a PersonEB from two seperate beans, each of those seperate beans needs an EJB-REF entry within its definition for that PersonEB. As for EJB 1.1 CMP being very limited, yes it is. Very limited (as you said). This is why third party OR Mapping tools like CocoBase have become extremely popular. With them, you define your relationship schema and it makes BMP beans for you. But don't dispair! You have several options. First, use BMP instead. Next, CocoBase (and TopLink, a similar product) cost one heck of a lot less then that testing tool you use for the performance tests (and we all know how much venture money you guys have - grin). The best solution (and the riskiest right now) is to use EJB 2.0. This has a tremendousely powerfull scheme for modeling complex relationships. We are developing for EJB 2.0 CMP in hopes of the spec going final and Orion supporting it fully soon. Hopefully, we will win that bet. If we don't, well... let's just say that the bleeding edge will leave us with a blood pressure of zero over zero. Jim --On Thursday, October 26, 2000 12:14 PM -0700 "Duffey, Kevin" [EMAIL PROTECTED] wrote: I HAVE THE SAME PROBLEM!!! I was about to write an email to the list..hopefully someone else can answer this. Its pissing me off. My problem is that EJB A uses EJB B,
RE: Anyone using Interbase in production?
I can't say which is the best, but I can supply the URLs you requested.
They all have either the JDBC driver linked or included.
PostgreSQL:
http://www.postgresql.org
Interbase:
http://www.interbase.com
mySQL:
http://www.mysql.com
Sybase:
http://www.sybase.com
--On Friday, October 27, 2000 2:24 PM -0700 "Duffey, Kevin"
[EMAIL PROTECTED] wrote:
So of all the databases that are "free" to use, which one is best for
load? I know of PostgreSQL, mySQL, Interbase, and Sybase 11.x. Can anyone
maybe fill in the URLs where we can get these databases, as well as JDBC
2.0 compliant drivers for them?
Thanks.
-Original Message-
From: Colin Jacobs [mailto:[EMAIL PROTECTED]]
Sent: Friday, October 27, 2000 1:56 PM
To: Orion-Interest
Subject: RE: Anyone using Interbase in production?
We built our prototype on InterBase. Mostly on NT but some
linux also.
I had pretty mixed experiences with it. As a developer doing
JDBC stuff, I
didn't have many complaints. On paper, at least, IB6 looks
like a pretty
full-featured open-source DB. But our DB guy complained about
IB a lot (the
tools and features) - although, I think a lot of it was him
having been
"spoilt" by Oracle.
One caveat: The IB JDBC drivers ("InterClient") connect to a
process called
interserver, then then connects to ibserver. I don't think
interserver is
very robust. I know that on NT, the interserver.exe processes
gradually
accumulate, until you start getting problems connecting. We
have to reboot
pretty regularly.
Be advised the JDBC drivers don't support SQL dialect 3 yet. Also, the
relationship between the IB open source community and Inprise
isn't a great
one. I think this is slowing down the development of the JDBC
2.0 drivers.
Plus, I believe there was a major fork in the IB source
within the last
couple of months.
Luckily our real product is built on Oracle. I'd be a bit
hesitant to use IB
in production under any significant load. With hindsight I
would have looked
into PostgreSQL a bit more thoroughly.
Colin
-Original Message-
From: Jim Archer [mailto:[EMAIL PROTECTED]]
Sent: Friday, October 27, 2000 10:26 AM
To: Orion-Interest
Cc: Jonas Larsson
Subject: Anyone using Interbase in production?
Does anyone here have any experience with Interbase in a production
environment? We are trying to decide which database to deploy in
production. Since we are a very low budget operation, we are
looking at
Open Source, but somehow missed this one.
Our most important requirements are stability, transaction
support, a solid
JDBC driver (for use with an EJB server) and online backup capability.
Any experiences people can offer would be appreciated,
especially in a
Linux environment.
Thanks!
Jim
--On Friday, October 27, 2000 11:46 AM +0200 Jonas Larsson
[EMAIL PROTECTED] wrote:
You could always use Interbase which now is opensource..
http://www.interbase.com
- Original Message -
From: Laufer, Michael
To: Orion-Interest
Sent: Friday, October 27, 2000 10:41 AM
Subject: MYSQL, Orion, EJB and transactions ??
Hi there,
I know that the question has been discussed here before,
but I'm still a
little confused about using MYSQL together with Orion.
I've just downloaded mysql (version 3.23.22 beta) and the manual
announces that mysql is now supporting transactions. If I
understood it
correctly, that would mean, that it should be possible to
use mysql with
entity beans. Am I right ?? What's confusing to me is the
fact, that I
only find news in mailing-list, that mysql is not supporting
transactions.
So I don't really now, if I can use mysql for entity beans.
If not, which database would you suggest ??
It should work on NT and not be the most expensive one as I
use it 'only'
for writing my Master's Thesis.
Thanks in advance,
Michel
Re: Can't call an EJB from Within another EJB
Remember that your EJB-REF tage are scoped within each bean, so that the same tag name can refer to different things, depending upon which bean it is defined in. So, my guess is that you didn't include an EJB-REF tag *in the bean definition* for the bean you want to reference. If thats not the problem, post your deployment descriptor for us to look at. Jim --On Wednesday, October 25, 2000 11:21 AM -0600 J Davis [EMAIL PROTECTED] wrote: We have gotten our Orion server(1.3.8) to work with EJBs on a singular level(i.e. we can call EJB A, B or C and it works fine.) But If one of our EJB's tries to call another(i.e. A calls B) A throws a naming exception that it can't find the EJB reference when doing a jndi lookup. Is there a dependency tag or something within one of the XML files that denotes EJB dependencies on one another? I'm sure this is something simple, but it is getting annoying.
Re: Code generation error at deployment stage.
Paul, be sure to bugzilla that, if you don't mind. The Orion folks have
said that bad error messages should be Bugzillaed. There is a link to
Bugzilla from the OrionServer.com homepage.
I have had silmilar trouble with cryptic error messages, so I'm kind of on
an unofficial campeign to report all poor error messages.
Jim
--On Tuesday, October 24, 2000 6:09 PM +0200 Paul Hammant
[EMAIL PROTECTED] wrote:
OK, It was to do with the transaction type (should have been "Container"
for the session bean). I guess the "!created" is short hand for " not
created " as in System.err.println("It was not created");
It would be preferable for the Orion stub generator to throw an
exception here ...
throw new OrionXYZDeploymentException("Session bean's transaction tye
not recognized", beanName);
... far more debugable.
Regards,
- Paul H
RE: EJB 2.0 Dependent bidirectional relationships not working
I have a one-to-one bidirectional relationship between two entity beans that appears to be working correctly. Orion creates a LONGBINARY field in Hypersonac to represent the EB reference and stores some value in there. It seems to be working on both sides. I also have a one-to-many bidirectional relationship between entity beans which seems to be working half way. The sode with just one gets populated, but the table with the many is empty when I look at it. This is odd, since it seems to be the oppisit of what you said. You seemed to say that the "many" table gets populated but not the field for the "one" reference. Am I right? Jim --On Tuesday, October 24, 2000 11:39 AM -0400 John D'Ausilio [EMAIL PROTECTED] wrote: I can't even get bidirectional relationships between beans working here ... I have a simple one-many relationship, collection in the parent, parent object in the child. When deployed, it correctly puts the backreference field in the child, but never fills it in with the parent's objectID has anyone used *any* bi-directional relationship successfully? john d -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jim Archer Sent: Monday, October 23, 2000 4:22 PM To: Orion-Interest Subject: EJB 2.0 Dependent bidirectional relationships not working Hi All... As I mentioned in an earlier message, I have some working example code that has an EJB 2.0 CMP entity bean working with both one-to-one and one-to-many unidirectional relationships. Next, I want to change the one-to-many relationship to be bidirectional. I expected this to be a simple change, but it didn't work out that way. I see that the ATM example does not include a dependent object with a bidirectional relationship, so I'm wondering if thie feature is known to work or not. If no one here has used this feature successfully, I'll add a bug report to bugzilla, but I wanted to make sure I did everything right first. To make my changes, I added abstract set/get methods to the dependent object class (EmailDO.java)for the remote interface of the EB it should refer to (Person.java). I also modified the deployment descriptor to have a CMR field in the dependent relationship section and a CMP field in the dependent section. I realize that the presence of the CMP-FIELD tag violates the spec, but Orion will not deploy dependent objects without it (it complaines that it can't instansiate an abstract class that it had generated). It all now looks like the Order-Lineitem example in the PD1 spec. After Orion deployed the app, I ran it and looked at the database. Orion had correctly created a table to hold the dependent (since its a many it needs its own table), but the field for the Person EB remote interface (which is the EB that the dependent is created by and should refer to) was named VALUEPERSON and had null as its value. This seems to indicate that Orion is not understanding that this field is supposed to be a CMR field. I reviewed the spec and there is no requirement that I manually set the Person remote interface in the dependent object, but I doubt thats the problem anyhow, since Orion named the person field "valueperson", indicating it thinks person is just another CMP field. Anyhow, I think I did everything right and I posted the code below. If someone sees something wrong or has any suggestions as to what I should try, I would appreciate you correcting me. Thanks VERY much!! Jim ?xml version="1.0"? !DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_2_0.dtd" ejb-jar descriptionTest Sample EJB 2.0 EB/description display-namePerson/display-name enterprise-beans entity cmp-version2.0/cmp-version descriptionPerson has an address DO/description display-nameTest20CmpDoOM.eb.Person/display-name ejb-nameTest20CmpDoOM.eb.PersonEJB/ejb-name homeTest20CmpDoOM.eb.PersonHome/home remoteTest20CmpDoOM.eb.Person/remote ejb-classTest20CmpDoOM.eb.PersonEJB/ejb-class persistence-typeContainer/persistence-type prim-key-classjava.lang.String/prim-key-class reentrantTrue/reentrant !-- These lines should not be required (according to the spec) -- !-- but without them deployment fails -- cmp-fieldfield-nameaddrDo/field-name/cmp-field cmp-fieldfield-nameemailDos/field-name/cmp-field cmp-fieldfield-nameuserId/field-name/cmp-field cmp-fieldfield-namefirstName/field-name/cmp-field cmp-fieldfield-namelastName/field-name/cmp-field primkey-fielduserId/primkey-field /entity
Re: EJB 2.0 Dependent Object problem - NPE on deploy
THANK YOU THANK YOU THANK YOU THANK YOU THANK YOU!
That was the problem! I sure wish I had seen that. I compared my
descriptor to the sample many times and missed that each time. I guess
thats what I get for working all night ;-)
Seriousely Earl, I can't thank you enough!
I now have dependent object samples with a one-to-one unidirectional
relationship and a one-to-many unidirectional working. Next challenge is to
make them work bidirectional. This is the important one, since thats what
my app needs to do. I have my fingers crossed.
I'm going to clean up the samples and send them off to OrionSupport, but if
anyone needs them in the meantime, send me a note off list and I'll send
them to you.
Jim
--On Sunday, October 22, 2000 11:48 AM -0600 Earl Marwil
[EMAIL PROTECTED] wrote:
Jim,
Try adding a field-name tag in your dependent cmp-field declarations:
dependents
dependent
dependent-nameaddrDo/dependent-name
dependent-classTest20CmpDo.eb.AddrDo/dependent-class
cmp-fieldfield-namestreet/field-name/cmp-field
cmp-fieldfield-namecity/field-name/cmp-field
cmp-fieldfield-namestate/field-name/cmp-field
cmp-fieldfield-namezip/field-name/cmp-field
/dependent
/dependents
I can't remember how I discovered this - it worked for me when I first
looked into ejb 2.0 / cmr / orion a couple of months ago.
Also, the ejb-name for the entity must match exactly with the role-source
ejb-name in the relationship. You have Temp20CmpDo.eb.Person in the
former and and Temp20CmpDo.eb.PersonEJB in the latter.
Hope this helps,
Earl
Earl S. Marwil, Ph.D. / Senior Scientist / SCIENTECH, Inc.
__o / TEL: (208) 525-3717 / 1690 International Way
-\, / FAX: (208) 529-4721 / Idaho Falls, ID 83402
0/ 0__ / net: [EMAIL PROTECTED]
EJB 2.0 Dependent bidirectional relationships not working
Hi All... As I mentioned in an earlier message, I have some working example code that has an EJB 2.0 CMP entity bean working with both one-to-one and one-to-many unidirectional relationships. Next, I want to change the one-to-many relationship to be bidirectional. I expected this to be a simple change, but it didn't work out that way. I see that the ATM example does not include a dependent object with a bidirectional relationship, so I'm wondering if thie feature is known to work or not. If no one here has used this feature successfully, I'll add a bug report to bugzilla, but I wanted to make sure I did everything right first. To make my changes, I added abstract set/get methods to the dependent object class (EmailDO.java)for the remote interface of the EB it should refer to (Person.java). I also modified the deployment descriptor to have a CMR field in the dependent relationship section and a CMP field in the dependent section. I realize that the presence of the CMP-FIELD tag violates the spec, but Orion will not deploy dependent objects without it (it complaines that it can't instansiate an abstract class that it had generated). It all now looks like the Order-Lineitem example in the PD1 spec. After Orion deployed the app, I ran it and looked at the database. Orion had correctly created a table to hold the dependent (since its a many it needs its own table), but the field for the Person EB remote interface (which is the EB that the dependent is created by and should refer to) was named VALUEPERSON and had null as its value. This seems to indicate that Orion is not understanding that this field is supposed to be a CMR field. I reviewed the spec and there is no requirement that I manually set the Person remote interface in the dependent object, but I doubt thats the problem anyhow, since Orion named the person field "valueperson", indicating it thinks person is just another CMP field. Anyhow, I think I did everything right and I posted the code below. If someone sees something wrong or has any suggestions as to what I should try, I would appreciate you correcting me. Thanks VERY much!! Jim ?xml version="1.0"? !DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_2_0.dtd" ejb-jar descriptionTest Sample EJB 2.0 EB/description display-namePerson/display-name enterprise-beans entity cmp-version2.0/cmp-version descriptionPerson has an address DO/description display-nameTest20CmpDoOM.eb.Person/display-name ejb-nameTest20CmpDoOM.eb.PersonEJB/ejb-name homeTest20CmpDoOM.eb.PersonHome/home remoteTest20CmpDoOM.eb.Person/remote ejb-classTest20CmpDoOM.eb.PersonEJB/ejb-class persistence-typeContainer/persistence-type prim-key-classjava.lang.String/prim-key-class reentrantTrue/reentrant !-- These lines should not be required (according to the spec) -- !-- but without them deployment fails -- cmp-fieldfield-nameaddrDo/field-name/cmp-field cmp-fieldfield-nameemailDos/field-name/cmp-field cmp-fieldfield-nameuserId/field-name/cmp-field cmp-fieldfield-namefirstName/field-name/cmp-field cmp-fieldfield-namelastName/field-name/cmp-field primkey-fielduserId/primkey-field /entity /enterprise-beans dependents dependent dependent-nameaddrDo/dependent-name dependent-classTest20CmpDoOM.eb.AddrDo/dependent-class cmp-fieldfield-namestreet/field-name/cmp-field cmp-fieldfield-namecity/field-name/cmp-field cmp-fieldfield-namestate/field-name/cmp-field cmp-fieldfield-namezip/field-name/cmp-field /dependent dependent dependent-nameemailDo/dependent-name dependent-classTest20CmpDoOM.eb.EmailDo/dependent-class cmp-fieldfield-nameemail/field-name/cmp-field cmp-fieldfield-nameperson/field-name/cmp-field /dependent /dependents relationships ejb-relation ejb-relation-nameUser-Address/ejb-relation-name ejb-relationship-role ejb-relationship-role-nameUser-has-Address/ejb-relationship-role-name multiplicityone/multiplicity
HINT: One possible way to cure an internal error on deployment
Hi All... I just thought I would put this out in case anyone finds it usefull to tuck away for future use. For about an hour now, I have been getting an "Internal error" on deployment. The error complained that the persistence type was not set for one of my fields in an EB that participated in an EJB 2.0 CMP relationship. I don't know what made me do it, but I went over to application-deploymnts and blew away the entire application folder. Then I started Orion and the app deployed like a champ. If I could reproduce this, I would bugzilla it, but I can't, so I'm just offering this hint. Jim
Re: Creating EAR Files
Santosh, if your using the exact same source and descriptor files from the primer, the error is most likely the location of everything in the archive. I would suggest that you use some zip tool to examint the archive built by the ant file and aloso your own to see how they differ. Once you figure out how ti use the service console to make your archive look like the one built by ant, you'll be in business. Good luck. Jim --On Tuesday, October 24, 2000 9:57 AM +0530 Santosh Kumar [EMAIL PROTECTED] wrote: Hi all, How do i create EAR/WAR/JAR files without using ANT1.1 as required by the ORION PRIMER. When i try to build these using the Orion provided SERVICE CONSOLE tool, it shows error "Class hello.ejb.HelloBean" not found, though it does exist in the same directory where i was pointing to. where am i going wrong? Santosh = == = Santosh Kumar C = = Senior Systems Engineer = = Wipro Technologies = = 1-8-448, Laxmi Building, S.P. Road, = = Begumpet, Secunderabad - 500 003 = = A.P, India. = = Phone@: 91407896008 Ext 4511 = = Fax @: 91407896123 = = eMail@: [EMAIL PROTECTED] = = url @: http://www.wipro.com = = The World's First SEI CMM Level 5 Software Services Company = = ==
RE: EJB Help..
Uaually, I need to build on top of legacy code. If I had time I would build a tool to generate the 2.0 entity beans and descriptors from a database schema, but I don't have time. I have seen these tools for 1.1, so someone will be doing it. Currently, my project is to build something brand new. Jim --On Saturday, October 21, 2000 8:23 PM -0400 Cory Adams [EMAIL PROTECTED] wrote: Jim, Thanks for the reply. I have not looked over the 2.0 spec. in detail yet but I will. Are you mapping cmp entity beans to an existing db structure most of the time? Cory At 07:28 PM 10/21/00 -0400, you wrote: Hi Cory... I doubt we'll see anything thats database engine specific supported in CMP. I agree that sequences are extremely usefull and wish that there was a standard way on implementing them on database engines so that JDBC (and therefore J2EE) could take full advantage. PostgreSQL has a sequence and MS SQL Server has an identity field and so on. Unfortunatly, database vendors have no standard for implementing them. You can write code to generate a unique value for a primary key. You could code up a session bean that uses JDBC to create a new record in a table with no fields but the identity field. Of course, this bean would be database specific and it would be used by the non-database specific CMP entity beans. Orion makes a key generator available called counter.jar, which you can read about in the Orion FAQ (although I don't know what its licensing terms are - check this before you rely on it in your app). Setting aside the question of sequence types and primary key generation, I have not yet run into a RDBMS data structure I don't think I could replicate using EJB 2.0 CMP. Even if I did, I could isolate part with BMP or session beans and use CMP for the rest. I expect if I found something so strange 2.0 CMP could not handle it that I would try to redesign it so that it could be handled. I would probably end up with a better and simpler design. With EJB 2.0 CMP, I have a very good chance of getting my J2EE app to run on whatever database on whatever compliant server on whatever operating system. And, all the work it does for me is nice as well. Also, with EJB 2.0, its entirely possible to create a tool that would let you draw a UML diagram and generate almost the entire back end of an app - deployment descripters, code, maybe everything but the QL- automatically and then make changes a snap. There is no such tool now, but give some time. The best source of how to do CMP, unfortunatly, is still the spec. Anyhow, I thought EJB 1.1 was of limited utility. I think 2.0 is much, much better and can probably handle most systems. Just my opinion. Jim --On Saturday, October 21, 2000 3:11 AM -0400 Cory Adams [EMAIL PROTECTED] wrote: Jim, How could a CMP managed entity bean handle a create for say an Oracle database table that used db specific sql for describing the key using a sequence? Where the sql itself might look like insert into customer (id, name, address) values(cust_sequence.NEXTVAL, "Jim" "12 Willow Street"); Maybe this is trivial. Better yet could I ask you to provide some of the sources of information that you use to help all of us better understand how to do CMP with perhaps complex RDBMS entity relationships? Thanks, Cory At 09:07 PM 10/20/00 -0400, Jim Archer wrote: What types of relationships do you feel EJB 2.0 can't adequately support? I have been studying 2.0 CMP carefully, and it seems to be quite powerfull. There may be holes in it, but it can handle the majority of real works cases. Jim --On Friday, October 20, 2000 12:28 PM -0700 [EMAIL PROTECTED] wrote: If you don't use an object-relational mapping tool you're still in for a lot of hurt with EJB if you have a complex data model. I don't think CMP really addresses the kind of data models large systems have. Nor does the relationship support in EJB 2.0 either. I think you'll end up doing JDBC BMP with your Session and Entity beans. Performance is only an issue when you make everything a stateful session bean or an entity bean. There are rules for when it's appropriate to make things entity beans. There still isn't a whole lot of useful information around on design EJBs yet though with most of it only explaining the basics including the ORA book. On Fri, 20 Oct 2000, Duffey, Kevin wrote: Thanks. I only meant to use the /classes folder because my ejb code is in the same project as the rest of my code (Servlets, javabeans, action classes, etc). Since it all compiles to the same one folder, I assume I will have to "move" the ejb compiled classes every time I compile them. What I was hoping for was a way to not have to do this..instead, just let the whole project compile to the WEB-INF/classes folder (all my code), and then have Orion pick up on the ejb changes from that poi
RE: EJB Help..
Hi Kevin... Accessing entity beans through session beans is usually the recomended procedure, but it does depend on what your doing. Jim --On Sunday, October 22, 2000 10:32 AM -0700 "Duffey, Kevin" [EMAIL PROTECTED] wrote: Thanks. Good news...I used ANT 1.1 and made a simple build script that compiles my com.company.ejb folder into a .jar file including the META-INF dir. I was finally able to get EJB deployed!!! So i am stoked about that. I do have a lot to learn still, and the spec from what I heard was mostly for vendors to understand..didn't help developers too much. But I will read it again. I am also still reading on an EJB book from ORiely press that covers EJB 1.1. It talks more about CTM's than EJB J2EE servers to my surprise, but I suppose they are the same thing. I really want to use stateless EJB session objects that work with entity objects. I don't want my web/client side to access entity objects directly...I don't know if thats the right way or not. What do you think? One of our developers here thinks we should just use Entity objects directly, but I don't see how that will help locate our logic on the ejb server. Do ejb session objects work directly with entity objects? Ahh..so much to learn..so little time. I think I'll be just in time for EJB 2.0! :) -Original Message- From: Juan Lorandi (Chile) [mailto:[EMAIL PROTECTED]] Sent: Friday, October 20, 2000 2:52 PM To: Orion-Interest Subject: RE: EJB Help.. the create method must reside in the Home interface and must match an ejbCreate method in the bean class... the Home And Remote interfaces (Login.java and LoginHome.java) must be implemented somewhere, because the Bean class doesn't implement it... EJB Servers/Containers, at deploy time, build a class that implements them and calls your ejb-- providing an indirection pattern which enables to provide transaction, security, caching and pooling support I suggest you read (again) extra carefully the ejb spec, and don't skip any section, specially the ones about Container responsabilities, this will give you the insight to know why your app isn't behaving well... HTH, Rifle PS: Copies of your Login*.java and the ejb-jar.xml would be welcome... -Original Message- From: Duffey, Kevin [mailto:[EMAIL PROTECTED]] Sent: Viernes, 20 de Octubre de 2000 17:22 To: Orion-Interest Subject: RE: EJB Help.. HI, Double check your ejb-jar.xml--are you setting LoginHome as your Home interface in there? Is there a LoginHome.create() method declared? Is there a LoginBean.ejbCreate() method defined? Hmm..I don't have a LoginHome.create()..the Orion Primer didn't show that. I have a Login.java, LoginBean.java and LoginHome.java. I think Login.java is the only one with a create() method in it. Should both the "interface" classes have a create() in it? Also, why is Orion trying to compile it if its already compiled? Or is this some sort of "assembly" routine Orion does? I assume from what I read that the EJB server "implements" the interfaces..so is it generating its own code at runtime and that is what compiling is failing? Thanks again.
EJB 2.0 Dependent Object problem - NPE on deploy
Hi All... After being told that Orion supports the PD1 spec for EJB 2.0 dependent objects I went through the PD1 spec carefully and compared it to the PD2 spec and changed my code accordingly. In fact, I have created a very stripped down example that fails. I also have looked carefully at the LogEntry class in the ATM example and its associated deployment descriptors and AccountEJB class. The best I can get Orion to do is throw a null pointer exception (pasted below) at deployment time. I have been trying a variety of things for many hours so far Friday and this weekend and still just the same, cryptic null pointer error. I have posted the code and deployment descriptors below. I realize the error is mine, since I can successfully deploy the ATM example. If someone could take a look and let me know what I screwed up, I would be greatly appreciative. This whole mess is pretty straightforward. In the PersonEJB class you'll see I used AddrDo for the varible name as in getAddrDo(), but I also tried to use a different name than the type, sich as getAddress(). If I remove the dependent object portions of this code and descriptor it works fine, except of course without the dependent. Also, there is a servlet and web descriptors and application descriptors I didn't post to save bandwidth. If thats needed I'll gladly post it. Thanks to everyone in advance. I'm sorry I'm asking so much, but the side of my head is bashed in from the brick wall. Jim C:\orionjava -jar orion.jar Auto-unpacking C:\Orion-test-apps\Test20CmpDo\rel\Sample20EbDo-ver001a.ear... do ne. Auto-unpacking C:\Orion-test-apps\Test20CmpDo\rel\Sample20EbDo-ver001a\Sample20E bDo-ver001a-web.war... done. Auto-deploying Sample20EbDo (Assembly had been updated)... Auto-deploying Sample20EbDo-ver001a-ejb.jar (ejb-jar.xml had been touched since the previous deployment)... java.lang.NullPointerException at com.evermind.server.ejb.deployment.ContainerManagedField.equals(JAX) at java.util.HashMap.put(Unknown Source) at java.util.HashSet.add(Unknown Source) at java.util.AbstractCollection.addAll(Unknown Source) at java.util.HashSet.init(Unknown Source) at com.evermind.server.ejb.deployment.Dependent.zk(JAX) at com.evermind.server.ejb.compilation.f4.init(JAX) at com.evermind.server.ejb.compilation.f9.ss(JAX) at com.evermind.server.ejb.EJBContainer.by(JAX) at com.evermind.server.Application.by(JAX) at com.evermind.server.Application.ge(JAX) at com.evermind.server.ApplicationServer.rn(JAX) at com.evermind.server.ApplicationServer.apr(JAX) at com.evermind.server.ApplicationServer.ge(JAX) at com.evermind.server.hf.run(JAX) at java.lang.Thread.run(Unknown Source) at com.evermind.util.f.run(JAX) ?xml version="1.0"? !DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/j2ee/dtds/ejb-jar_2_0.dtd" ejb-jar descriptionTest Sample EJB 2.0 EB/description display-namePerson/display-name enterprise-beans entity cmp-version2.0/cmp-version descriptionPerson has an address DO/description display-nameTest20CmpDo.eb.Person/display-name ejb-nameTest20CmpDo.eb.Person/ejb-name homeTest20CmpDo.eb.PersonHome/home remoteTest20CmpDo.eb.Person/remote ejb-classTest20CmpDo.eb.PersonEJB/ejb-class persistence-typeContainer/persistence-type prim-key-classjava.lang.String/prim-key-class reentrantTrue/reentrant !-- Same failure with without the next line -- cmp-fieldfield-nameaddrDo/field-name/cmp-field cmp-fieldfield-nameuserId/field-name/cmp-field cmp-fieldfield-namefirstName/field-name/cmp-field cmp-fieldfield-namelastName/field-name/cmp-field primkey-fielduserId/primkey-field /entity /enterprise-beans dependents dependent dependent-nameaddrDo/dependent-name dependent-classTest20CmpDo.eb.AddrDo/dependent-class cmp-fieldstreet/cmp-field cmp-fieldcity/cmp-field cmp-fieldstate/cmp-field cmp-fieldzip/cmp-field /dependent /dependents relationships ejb-relation ejb-relation-nameUser-Address/ejb-relation-name ejb-relationship-role ejb-relationship-role-nameUser-has-Address/ejb-relationship-role-name
RE: Orion in production - autoupdate tool
I would love to take credit, but one of the guys I work with is an expert in this field and he has been working on securing Orion on a Debian Linux server. I'll see if I can get him to write up a little doc on this, but unfortunatly we have not got it working properly yet. When we remove Orion's permission to write to itself, we find thst it is no longer able to make the JSP cache files when a JSP is run for the first time. This is odd, since we moved them and granted Orion permission to write to them, so this should not fail. We sent some questions off to Orion, but have not heard back yet. So for now, we are running it unsecure in test mode. We really can't deploy like that, so it is being worked on. When we figure out what the heck is going on, we'll do as you request, gladly. We have received a lot of help from this list and so we'll be happy to give back. However, I doid post a long note from my friend describing the some problems and solutions, except for that last one. I'll see if I can hunt it down and forward it to you. Jim Jim --On Sunday, October 22, 2000 2:28 PM +1000 Mike Cannon-Brookes [EMAIL PROTECTED] wrote: This sounds fascinating - I'd love to know more about *ix permissions, securing Orion properly etc. You sound like you've got it all down pat, if you wouldn't mind, I'd love to learn more about your setup - as I'm sure other Orion users would. How about writing a quick how to doc about securing Orion on *ix? The OrionSupport team will love you for it ;) Mike -Original Message- From: Jim Archer [mailto:[EMAIL PROTECTED]] Sent: Sunday, October 22, 2000 1:18 PM To: Orion-Interest Cc: Mike Cannon-Brookes Subject: RE: Orion in production - autoupdate tool Actually, I'm not sure the auto-update tool is very usefull at all in production. For security reasons, we don't allow Orion write access to itself. If we configure our operating system to allow Orion to over write its own code files, we create a serious security hole. A hacker may discover an exploit in Orion that gets it to change its files and open a security hole. If Orion can't write to itself, this can't happen. Configuring an app like a web server to not have write access to itself is security measure number 1. Jim --On Sunday, October 22, 2000 12:09 PM +1000 Mike Cannon-Brookes [EMAIL PROTECTED] wrote: Robert, I agree with some of your points, and I have a 'semi' solution that I've told Magnus about before. The autoupdate tool is brilliant, but too addictive. Sometimes I've updated to get fixes for bugs, only to get another version with a different annoying bug. If it had the option to autoupdate to the latest 'stable' version, or the latest 'rough edged' version, it would be perfect. eg java -jar autoupdate.jar -version=stable / development Oh, and to Al who says he can't see Orion because it's too inexpensive? Just tell the client it's $10k, bill 'em $10k and they'll love you for it - oh, and either pocket the $8.5k or donate it to the Orion guys, I'm sure they wouldn't knock you back ;) Mike -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Robert Krueger Sent: Sunday, October 22, 2000 5:19 AM To: Orion-Interest Subject: RE: Orion in production At 07:46 21.10.00 , you wrote: I think that Orion far outshines products like EA Server, Web Sphere, etc because of the functionality available - and you are right - the docs are just a little more pretty and their tech support is absurdly costly and much less informative than what is found on this list. snip/ ok, sorry to somehow take the part of mr. bad guy here but I get the feeling someone following this discussion IMHO doesn't really get the right impression. it's a little bit too black and white. first of all, let me say that after about a year of intensively using orion in development and half a year in production, I'm a generally very satisfied customer and I do appreciate the completeness, standards conformance, speed, great logical concept of orion. however, I think it's oversimplifying things to say it's just marketing that makes the big names so expensive (it's a significant factor, though) and it's not a very good assessment to say that orion beat all competitors' asses if it weren't for the lack of good documentation. there are some significant things that are a lot of work and therefore very expensive like QA and rigid testing with many, many hardware, software, db, vm combinations that a company the size of evermind simply cannot deliver (have you looked at the number of platforms you can get websphere for?). anyone who says that write once run anywhere really works 100% probably hasn't been involved in too many real-world projects where certain combinations of VMs and software just crash under certain load conditions
Do EJB 2.0 dependent object classes work as per the spec?
Hi All... I'm just wondering if dependent object classes in Orion 1.4.0 work as laid out in the EJB 2.0 PD2 spec. I have been trying to get it to work as the spec says but have gotton a number of errors from Orion when I start it, mostly complaining that the get/set methods for the dependent object class in the EJB should not be declared abstract, which they clearly must be per the spec. I looked at the ATM example, and saw that the LogEntry dependent object class is serializable and set up as a CMP field of an entity. Also, it declares the deepCopy method, all of which is worng for EJB 2.0 PD2. But its methods are abstract, which is right for 2.0. So I'm just wondering if anyone has gotton it to work as per the spec. If so, I'll keep trying. If anyone knows that it does not work, I would appreciate knowing, so I can stop beating my head against the brick wall. If it works kinda-sorta with tricks, what are the tricks? Thanks very much... Jim
RE: Do EJB 2.0 dependent object classes work as per the spec?
Thanks, Tim. I do have that tag in place. I'll have to review PD1 and see how dependent objects work under that spec. Hopefully, there are not huge differences. Jim --On Friday, October 20, 2000 4:29 PM -0400 Tim Drury [EMAIL PROTECTED] wrote: I was getting the same thing until I added cmp-version2.x/cmp-version to the entity area. You don't need the ejb2 DTD. -tim -Original Message- From: Jim Archer [mailto:[EMAIL PROTECTED]] Sent: Friday, October 20, 2000 2:54 PM To: Orion-Interest Subject: Do EJB 2.0 dependent object classes work as per the spec? Hi All... I'm just wondering if dependent object classes in Orion 1.4.0 work as laid out in the EJB 2.0 PD2 spec. I have been trying to get it to work as the spec says but have gotton a number of errors from Orion when I start it, mostly complaining that the get/set methods for the dependent object class in the EJB should not be declared abstract, which they clearly must be per the spec. I looked at the ATM example, and saw that the LogEntry dependent object class is serializable and set up as a CMP field of an entity. Also, it declares the deepCopy method, all of which is worng for EJB 2.0 PD2. But its methods are abstract, which is right for 2.0. So I'm just wondering if anyone has gotton it to work as per the spec. If so, I'll keep trying. If anyone knows that it does not work, I would appreciate knowing, so I can stop beating my head against the brick wall. If it works kinda-sorta with tricks, what are the tricks? Thanks very much... Jim
RE: Orion in production - Let's sell support!
Hello all... --On Friday, October 20, 2000 5:35 PM -0300 "Juan Lorandi (Chile)" [EMAIL PROTECTED] wrote: And also, lack of support documentation is becoming now, as most developers are finishing their work and reach deployment time(from what I pick up of many mails in this list), a critical point about orion. Many of us are reaching the point where we have to prove no only that orion's the best, but that it also is a good business choice. This is unfairly hard due to little colaboration from Evermind's team regarding, as said, support documentation, tough it clearly seems to be changing. This is a key issue. There is an old saying that time is money. Not true in software. Time is far more valuable than money. Money can be raised but time can not. Orion is reasonably priced for the product itself. However, if using Orion means a lot of trial and error development and no official support from the vendor, the costs in extra consumption of developers time and oppertunity loss from delayed market entry could easily exceed the price tag of Weblogic. Don't get me wrong, I like Orion. I like it alot. Currently, our intention is to complete development on it and then license it and deploy with it and hopefully sell it with our product. This goal would be one heck of a lot easier to obtain if we had official support from the vendor. Right now, there are people here banging their heads on the wall just trying to guess at what works and what dossen't, whats implemented and whats not. It's tireing. Anybody want to help me start a business selling Orion support on a 900 number? Just charge several dollars a minute, on an incident by incident basis. If the support is competant, it would sell big. Heck, we could make more money then Evermind! Big Grin OK, just kidding, but this is a serious issue. Jim
RE: EJB Help..
What types of relationships do you feel EJB 2.0 can't adequately support? I have been studying 2.0 CMP carefully, and it seems to be quite powerfull. There may be holes in it, but it can handle the majority of real works cases. Jim --On Friday, October 20, 2000 12:28 PM -0700 [EMAIL PROTECTED] wrote: If you don't use an object-relational mapping tool you're still in for a lot of hurt with EJB if you have a complex data model. I don't think CMP really addresses the kind of data models large systems have. Nor does the relationship support in EJB 2.0 either. I think you'll end up doing JDBC BMP with your Session and Entity beans. Performance is only an issue when you make everything a stateful session bean or an entity bean. There are rules for when it's appropriate to make things entity beans. There still isn't a whole lot of useful information around on design EJBs yet though with most of it only explaining the basics including the ORA book. On Fri, 20 Oct 2000, Duffey, Kevin wrote: Thanks. I only meant to use the /classes folder because my ejb code is in the same project as the rest of my code (Servlets, javabeans, action classes, etc). Since it all compiles to the same one folder, I assume I will have to "move" the ejb compiled classes every time I compile them. What I was hoping for was a way to not have to do this..instead, just let the whole project compile to the WEB-INF/classes folder (all my code), and then have Orion pick up on the ejb changes from that point. It appears to me from what everyone is saying I will have to use some sort of script every time I make a change to an ejb, which my first thoughts is a pain in the ass. Its very easy to develop servlets, action classes, javabeans, core classes, but ejb not only requires 3 classes per component, but lots of "special" work just to get the thing deployed. Then, every time you make a change, it requires the same process. I would think turn-around time for ejb development is on the order of a couple of minutes for every change you make. That results in a lot slower development cycle than I am currently using. Worse, I have started hearing alot of people turn away from ejb and going back to servlets because of development time, and performance. Supposedly the ejb stuff isn't living up to all the hype. However, I look at what the ejb container does for you (connection pooling, transactions, security, instance pooling, etc) and it seems there is alot of stuff I wont have to do on the side of persistence, transactions and security..so maybe the extra time is worth it? ;) Anyways..I did as one person suggested in this list, I set up in my application.xml like so: module ejb/path/www/WEB-INF/classes//ejb /module and Orion seems to be finding the classes (the ejb). However, I keep seeing an error appear. It says something like: Error compiling class c:/path/www/WEB-INF/classes/ Login.java LoginBean.java LoginHome.java can't find method create()in LoginBean.java Its a very strange message to me. If I change the module path, it tells me it can't find the classes. If I delete the classes, it also tells me it can't find them. So I assume the path is set correctly in the module ejb tag..as it is finding the classes. I am just not sure why the heck its giving me some compiler error..or why its even trying to compile them..they are already compiled. Anyways..I'll keep plugging away. -Original Message- From: Stanislav Maximov [mailto:[EMAIL PROTECTED]] Sent: Thursday, October 19, 2000 6:34 PM To: Orion-Interest Subject: RE: EJB Help.. Kevin, look inside the news-application example bundled with Orion, lots of things will become clear for you after that. www-dir/WEB-INF/classes directory is for servlet classes, not for EJBs. You'll see how to deploy EJBs in that example and in documentation as well. stas@ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Duffey, Kevin Sent: Friday, October 20, 2000 3:45 AM To: Orion-Interest Subject: RE: EJB Help.. Thanks for the note. One thing..since I compile all of my classes into the www/WEB-INF/classes dir, should I put a META-INF in the /classes dir, and just point the module to the WEB-INF/classes folder? Would that work? Not that I want you to tell me everything, ok..I do, but what exactly do I need to get EJB deployed in that way? My first stab that I want to do is create a login process. I would like to use statless session beans, and also use an entity bean..using CMP. I created 3 classes, Login, LoginBean and LoginHome. I have them in com.mycompany.ejb package. That compiles to www/WEB-INF/classes dir. So do I make application.xml like so: module/www/WEB-INF/classes/module where the com folder starts? Or do I actually have to point them directly to the .class files
RE: EJB Help..
Kevin, your "Home interface" class, the LoginHome object, should have a create() method. In fact, you can have several create methods if you like, each with a different parameter list (yes, you can have no create methids, but thats a special case no relevant here). The Orion primer does show a create method. Check out steps 4 and 5. Look for helloHome.create(). Once you have gotton an instance of your home interface object, you call its create method and it returnes to you an instance of your EJB's remote interface. As for compiling, In EJB 1.1 Orion has to generate the RMI stubs and skeletons for your classes and it has to compile those. In EJB 2.0, Orion has to create actual classes that extens the abstract classes you wrote, and these have to be compiled. In both cases, you must have the JDK installed and not just the JRE for this reason. Good luck... Jim --On Friday, October 20, 2000 1:21 PM -0700 "Duffey, Kevin" [EMAIL PROTECTED] wrote: HI, Double check your ejb-jar.xml--are you setting LoginHome as your Home interface in there? Is there a LoginHome.create() method declared? Is there a LoginBean.ejbCreate() method defined? Hmm..I don't have a LoginHome.create()..the Orion Primer didn't show that. I have a Login.java, LoginBean.java and LoginHome.java. I think Login.java is the only one with a create() method in it. Should both the "interface" classes have a create() in it? Also, why is Orion trying to compile it if its already compiled? Or is this some sort of "assembly" routine Orion does? I assume from what I read that the EJB server "implements" the interfaces..so is it generating its own code at runtime and that is what compiling is failing? Thanks again.
RE: support EJB2.0 or not?
Hi Jeff...
Thats odd. I don't have cmp-version 2.x /cmp-version specified anywhere
in my descriptor. Nor do I have any indication in my application.xml file
that it should use EJB 2.0. And, as you know, I also have a bunch of EJB
2.0 CMP entity beans.
I started my ejb-jar.xml file by copying the one from the ATM sample. It
does not have that either. There is nothing in the server.xml file about
it. So I wonder, how does Orion it know? I assumed it guessed by looking at
the code, so prehaps he should post the code for his entity bean as well?.
Jim
PS - Did you know that whatever you use for a mail server routinely has
trouble accepting mail? I always get the 4 hour can't send warning from my
outgoing mail server.
--On Wednesday, October 18, 2000 10:12 PM -0700 Jeff Schnitzer
[EMAIL PROTECTED] wrote:
No, you don't need to specify the new DOCTYPE. I haven't, and I'm
making extensive use of EJB2.0 beans.
Tim, you probably are missing something important in the deployment
descriptor. It's hard to say what without seeing it. Do you have
cmp-version 2.x /cmp-version
in your entity block? You should post your descriptor if you would
like further help.
Jeff
-Original Message-
From: John D'Ausilio [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 18, 2000 4:59 PM
To: Orion-Interest
Subject: RE: support EJB2.0 or not?
I believe the difference is in which dtd you specify in the deployment
descriptor DOCTYPE
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Tim Drury
Sent: Wednesday, October 18, 2000 5:21 PM
To: Orion-Interest
Subject: RE: support EJB2.0 or not?
My guess is the Orion is assuming my EJB is a 1.1 entity
bean. What tell Orion that the bean is a 2.0 bean?
Perhaps that is where my mistake lies.
-tim
-Original Message-
From: John D'Ausilio [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 18, 2000 3:28 PM
To: Orion-Interest
Subject: RE: support EJB2.0 or not?
You need to examine your deployment descriptor and
class/interface defs ..
there are lots of rules to follow, and they're easy to miss.
I have CMP
beans and dependent objects in various types of relationships
all running
just fine, but I've spent many an hour trying to find
mistakes evidenced by
errors such as yours. Go through the contract in section 9 of
the spec, and
assume nothing :)
(I wish I could remember just which mistake it was that
caused that problem,
but I cant)
jd
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf
Of Tim Drury
Sent: Wednesday, October 18, 2000 12:18 PM
To: Orion-Interest
Subject: support EJB2.0 or not?
When I try to write a 2.0 compliant entity bean:
public abstract class ContactBean implement EntityBean
{
public abstract void setName(String s);
public abstract String getName();
...
}
Orion throws the error (at deployment):
... Bean class com.tfc.ejb.ContactBean must not be declared
abstract
So what did I do wrong? Does Orion 1.3.8 or 1.4.0 support
EJB 2.0 entity beans like the web page advertises or not?
-tim
RE: Please help! I get null pointer exception after callingcreateonan EB with EJB 2.0 CMP Orion 1.3.8...
Hi Jeff!
Thanks alot! I see I'm not the only one up at 4:00AM! I really, really
appreciate your help with this.
I'll look at that right away. In the meantime, I solved the problem minutes
before your email arrived. Apparently, Orion does not like for the create()
method on the bean class to not set a value for the primary key. I was
leaving them set to null, which was causing the NPE.
I replicated this in a small, simple sample that does nothing more than
have a servlet create an entity bean (in EJB 2.0, of course).
Anyhow, I don't know what the scoop on this is. I'm going to review the
spec, since I thought that was legal behavior. Then again, anything seels
legal at 4:00AM!!!
Thanks again!! I'll let you know what I figure out.
Jim
--On Wednesday, October 18, 2000 1:16 AM -0700 Jeff Schnitzer
[EMAIL PROTECTED] wrote:
I took a quick look through and noticed one thing which looks strange.
I believe that when you use a primary key class for a compound key, you
should *not* make the key class a cmp member of the EJB. Rather, the
EJB needs to have cmp fields which are named the same as the public
fields in the primary key class. The container figures out how to map
it all out.
Take a look at section 9.10.1.2 of the spec. I'm pretty sure this is
your problem.
I seem to remember one of the Orion guys mentioning that any
less-than-stellar error messages should be considered bugs to be logged
in bugzilla :-)
Good luck,
Jeff
-Original Message-
From: Jim Archer [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 17, 2000 1:54 PM
To: Orion-Interest
Cc: Jeff Schnitzer
Subject: RE: Please help! I get null pointer exception after calling
createonan EB with EJB 2.0 CMP Orion 1.3.8...
OK, here is the code and deployment descriptor. I apologize
that there is a
lot here, but I have included one entity bean, a session bean
that creates
this entity bean, and the deployment descriptor.
Eventually I am planning to move all the address information into a
dependant object, but heck, I have to get create working first ;-)
Thanks VERY much!
Jim
// CrHome.java
package com.regtek.eb20;
import java.rmi.RemoteException;
import java.util.*;
import javax.ejb.CreateException;
import javax.ejb.EJBHome;
import javax.ejb.FinderException;
import com.regtek.types.RegnetCR;
import com.regtek.types.RegnetTag;
public interface CrHome extends EJBHome {
Cr create()
throws CreateException, RemoteException;
Cr create(RegnetCR cr)
throws CreateException, RemoteException;
Cr findByPrimaryKey(RegnetTag primaryKey)
throws FinderException, RemoteException;
Collection findByLastname(String lastname)
throws FinderException, RemoteException;
Collection findByFullName(String lastname, String firstname)
throws FinderException, RemoteException;
Collection findByEmail(String email)
throws FinderException, RemoteException;
Collection findByPhone(String phone)
throws FinderException, RemoteException;
Collection findAll()
throws FinderException, RemoteException;
}
//
-
---
// CrEJB.java
// Cr EJB 2.0 Entity Bean
package com.regtek.eb20;
import java.rmi.RemoteException;
import java.sql.*;
import java.util.Enumeration;
import java.util.Vector;
import java.util.Date;
import javax.ejb.*;
import javax.naming.*;
import javax.sql.DataSource;
import javax.transaction.*;
import com.regtek.types.RegnetCR;
import com.regtek.types.RegnetTag;
public abstract class CrEJB implements EntityBean {
protected EntityContext ejbContext;
public void setEntityContext(EntityContext ctx) {
ejbContext = ctx;
}
public void unsetEntityContext() {
ejbContext = null;
}
public void ejbRemove() throws RemoveException {
}
public void ejbLoad() {
}
public void ejbStore() {
}
public void ejbPostCreate() throws CreateException {
}
//public void ejbPostCreate(RegnetTag tag) throws
CreateException {
//}
public void ejbPostCreate(RegnetCR cr) throws CreateException {
}
//
public RegnetTag ejbCreate() {
trace("ejbCreate() entered");
initToNull();
trace("ejbCreate() entered");
// In CMP, should return null.
return null;
}
//
public RegnetTag ejbCreate(RegnetCR cr)
throws CreateException {
trace("ejbCreate(RegnetCR cr) entered");
initToNull();
if(cr == null)
return null;
setTag(cr.getTag());
setLastName(cr.getLas
RE: displaying xml
The lack of self starters? Here? You have GOT to be kidding! --On Tuesday, October 17, 2000 8:11 AM -0400 "Joseph B. Ottinger" [EMAIL PROTECTED] wrote: Or, of course, orionsupport.com, which I know at least two other people might be working on, and I'm considering reviving it myself. Although, honestly, the lack of self-starters here is rather annoying... "Why doesn't somebody ELSE do it" is a crappy way to go about development. On Mon, 16 Oct 2000, Hani Suleiman wrote: Or how about a faq-o-matic? Seems ideal for this kind of thing. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Porfiriev Sergey Sent: Monday, October 16, 2000 8:33 PM To: Orion-Interest Subject: Re: displaying xml To Magnus Karl Avedal: it will be good idea to open "users contribution" topic at www.OrionServer.com http://www.OrionServer.com ( like orionsupport was). and as result traffic in orion-interest will be decreased :) - Original Message - From: Derek Akers mailto:[EMAIL PROTECTED] To: Orion-Interest mailto:[EMAIL PROTECTED] Sent: Monday, October 16, 2000 6:44 PM Subject: Re: displaying xml Hi Troy, thanks, but I've already tried. the pre /pre tags do preserve the indentation of the XML, but do not allow for the displaying of tags for some reason. 1) use xmp /xmp tags - pre can;'t help. 2) use this xsl for XML parsing - ( i use it with Salaman's Saxon XSLT engine, but it will work under Orion default XSLT (xerces)) it will display your XML as HTML with XML reformating and coloring xsl:stylesheet xmlns:xsl=" http://www.w3.org/1999/XSL/Transform http://www.w3.org/1999/XSL/Transform" version="1.0" xsl:output method="html" encoding="windows-1251" indent="yes"/ !-- Generic stylesheet for viewing XML -- !-- This stylesheet has been modified to use modes instead of nested templates. -- !-- Last Updated by Parf: moved to lotus xsl, main tag fix -- xsl:template match="/" HTML xsl:apply-templates/ /HTML /xsl:template xsl:template match="node()" xsl:if test="name()!='xml-stylesheet'" bbigxsl:textlt;/xsl:textxsl:value-of select="name()"/xsl:textgt;/xsl:text/big/bbr/ DIV DEFANGED_STYLE="font-family:Courier; font-size:10pt; margin-bottom:0em" xsl:apply-templates mode="inside"/ /DIV bbigxsl:textlt;//xsl:textxsl:value-of select="name()"/xsl:textgt;/xsl:text/big/b /xsl:if /xsl:template xsl:template match="*" mode="inside" DIV DEFANGED_STYLE="margin-left:1em" SPAN DEFANGED_STYLE="color:blue" xsl:textlt;/xsl:text bxsl:value-of select="name()"//b xsl:for-each select="@*" xsl:call-template name="attribute"/ /xsl:for-each xsl:choose xsl:when test="self::node()" xsl:textgt;/xsl:text xsl:apply-templates mode="inside"/ xsl:textlt;//xsl:text xsl:value-of select="name()"/ xsl:textgt;/xsl:text /xsl:when xsl:otherwise xsl:text/gt;/xsl:text /xsl:otherwise /xsl:choose /SPAN /DIV /xsl:template xsl:template name="attribute" SPAN DEFANGED_STYLE="color:navy" xsl:text /xsl:text xsl:value-of select="name()"/ xsl:text="/xsl:text SPAN DEFANGED_STYLE="color:black" xsl:value-of select="."/ /SPAN xsl:text"/xsl:text /SPAN /xsl:template xsl:template match="comment()" mode="inside" SPAN DEFANGED_STYLE="color:orange" xsl:textlt;!--/xsl:textxsl:value-of select="."/xsl:text--gt;/xsl:text /SPAN /xsl:template xsl:template match="processing-instruction()" mode="inside" DIV DEFANGED_STYLE="margin-left:1em; color:maroon" xsl:textlt;?/xsl:text xsl:value-of select="name"/ xsl:text /xsl:text xsl:value-of select="."/ xsl:text?gt;/xsl:text /DIV /xsl:template xsl:template match="text()" mode="inside" SPAN DEFANGED_STYLE="color:green" xsl:value-of select="."/ /SPAN /xsl:template /xsl:stylesheet - Original Message - From: Troy E. mailto:[EMAIL PROTECTED] Echols To: Orion-Interest mailto:[EMAIL PROTECTED] Sent: Monday, October 16, 2000 5:09 PM Subject: Re: displaying xml Perhaps enclosing the xml in pre /pre will work. Troy Echols Derek Akers wrote: Hi all... I am trying to display the contents of an XML file to the screen, embedded inside a JSP page. That is, I want to include a header and footer on the page (for navigation purposes), with the XML in the middle. I want the text to be viewable literally (tags all), but I have been unable to find a solution... I thought maybe the contentType attribute of the %@ page % directive might do it, but it seems not. Does anyone know of a way to do this? Derek Akers Internet Application Developer Eldan Software, Toronto (416) 341-0070
Re: 2 many messages - News Server needed. - Or we could split thelist
Actually, I think the mail list is fine. I use a filter to move these messages into their own folder. However, I do feel that some improvement is possible. I recomend splitting the list into a few other lists. Probably the most obvious split is between developers using Orion and administers trying to maintain, configure and install it. Jim --On Tuesday, October 17, 2000 7:58 PM +0200 Miles Daffin [EMAIL PROTECTED] wrote: Hi Folks, I have not picked up my email for 2 days and have just downloaded 108 Orion-Interest messages. Imagine what would have happened if I had left this job until Friday. I think it is time to turn this thing into a news group. It would also make it easier to see, follow, save contribute to separate threads. In fact I cannot see a reason not to do this. Maybe you can. -- Miles Daffin Java Developer HOT Company BV Mathernesserlaan 171 3014 HA Rotterdam Land: +31 (0) 10 476 2500 Fax: +31 (0) 10 476 5762 Mobile: +31 (0) 2959 1423 http://www.hotobjects.nl
Re: EJB-EJB relationship example
FYI, the Orion EJB 2.0 ATM example does use JMS. It uses a MessageDriven bean to implement loogging. --On Tuesday, October 17, 2000 12:24 PM -0700 Luis M Bernardo [EMAIL PROTECTED] wrote: I don't remember whether the atm example uses jms but orion comes with jms. comment out the jms entry in the server.xml file. On Mon, 16 Oct 2000, Truong Di Ly wrote: Hi, has someone a short example with EJB2 which use EJB-EJB relationship. The atm example doesn't run because i don't have a JMS server installed. Thanks, Di
RE: Please help! I get null pointer exception after calling createonan EB with EJB 2.0 CMP Orion 1.3.8...
homecom.regtek.eb20.UarHome/home remotecom.regtek.eb20.Uar/remote /ejb-ref ejb-ref ejb-ref-nameejb/CrHomeEb/ejb-ref-name ejb-ref-typeEntity/ejb-ref-type homecom.regtek.eb20.CrHome/home remotecom.regtek.eb20.Cr/remote /ejb-ref /session /enterprise-beans relationships ejb-relation ejb-relation-nameUAR-CR/ejb-relation-name ejb-relationship-role ejb-relationship-role-name UAR-has-CR /ejb-relationship-role-name multiplicityone/multiplicity role-source ejb-namecom.regtek.eb20.UarEJB/ejb-name /role-source cmr-field cmr-field-namecr/cmr-field-name cmr-field-typecom.regtek.eb20.CrEJB/cmr-field-type /cmr-field /ejb-relationship-role ejb-relationship-role ejb-relationship-role-name CR-belongsto-UAR /ejb-relationship-role-name multiplicityone/multiplicity role-source ejb-namecom.regnet.eb20.UarEJB/ejb-name /role-source /ejb-relationship-role /ejb-relation /relationships assembly-descriptor security-role descriptionUsers/description role-nameusers/role-name /security-role /assembly-descriptor /ejb-jar --On Tuesday, October 17, 2000 11:32 AM -0700 Jeff Schnitzer [EMAIL PROTECTED] wrote: I have had no problems creating CMP entity beans from session beans with EJB2.0. Seems to work as advertsied :-) I suggest posting your code and descriptors; I'll take a look, and the more examples of EJB2.0 beans floating around the better :-) Jeff -Original Message- From: Jim Archer [mailto:[EMAIL PROTECTED]] Sent: Monday, October 16, 2000 4:18 PM To: Orion-Interest Subject: Please help! I get null pointer exception after calling create onan EB with EJB 2.0 CMP Orion 1.3.8... Hi All... Please help me out wityh this if you can. I'm really stuck and already behind schedual, so any ideas would be appreciated... I'm using Orion 1.3.8 and EJB 2.0 for CMP. I have written a fairley simple stateless session bean that's job is to just create a particular entity bean and populate it. This session bean is called from a servlet. When the session bean calls create on the home interface object of the entity bean it wants to create, the create method seems to execute properly and returns null. This seems true reguardless of which of two create() methods I call. After the create() method returns but before the next line of code is executed, Orion throws the following exception: java.lang.NullPointerException at CrHome_EntityHomeWrapper7.hashCode(CrHome_EntityHomeWrapper7.java:127 ) at com.evermind.util.ExternalHashSet.get(JAX) at CrHome_EntityHomeWrapper7.create(CrHome_EntityHomeWrapper7.java:335) at com.regtek.slsb.CreateNewCRBean.makeNew(CreateNewCRBean.java:41) at CreateNewCR_StatelessSessionBeanWrapper2.makeNew(CreateNewCR_Stateles sSessionBeanWrapper2.java:54) at com.regtek.protocol_servlets.MakeCR.doPost(MakeCR.java:92) at javax.servlet.http.HttpServlet.service(HttpServlet.java) at javax.servlet.http.HttpServlet.service(HttpServlet.java) at javax.servlet.http.HttpServlet.service(HttpServlet.java) at com.evermind.server.http.d1.si(JAX) at com.evermind.server.http.d1.forward(JAX) at com.evermind.server.http.ed.sp(JAX) at com.evermind.server.http.ed.so(JAX) at com.evermind.util.f.run(JAX) Of course, I have a pile of code and descriptors, but didn't want to post all that. If it is necessary, I will do so. Its not that I didn't want to, but I'm not sure which of it is relevant to this problem and posting all of it would make for a very long message. If someone could give me an idea of how to solve this I would appreciate it. I went through the archives and saw one other posting from Sep 22 from someone who was having this exact problem, but I could find no reply. I sent that guy a note, and he wrote back telling me he gave up on it. I would post a bug in Bugzilla, but I'm not sure this is a bug. It seems too fundamental a problem to be a bug in Orion. Thanks very much. Jim
Re: Steps For Deploying the EJB
Check out the Orion primer and Orion CMP primer at: http://www.jollem.com These are great starting points for making EJBs and deploying them. In particular, pay attention to the ant build files (build.xml) to learn how to package up the .ear file and its components. Good luck. Jim --On Monday, October 09, 2000 2:13 PM +0530 Santosh Kumar [EMAIL PROTECTED] wrote: Hi All, I am pretty new to EJB. Have started with Orion. I would like to know the step by step procedure for deploying an EJB Application on the Orion. Or atleast a pointer to the same. some url site? Some Doc? Please Help Me! Santosh. = == = Santosh Kumar C = = Senior Systems Engineer = = Wipro Technologies = = 1-8-448, Laxmi Building, S.P. Road, = = Begumpet, Secunderabad - 500 003 = = A.P, India. = = Phone@: 91407896008 Ext 4511 = = Fax @: 91407896123 = = eMail@: [EMAIL PROTECTED] = = url @: http://www.wipro.com = = The World's First SEI CMM Level 5 Software Services Company = = ==
Re: Communication Error with moved Product ejb example
Hello Vivek...
--On Monday, October 16, 2000 10:20 PM -0500 Vivek Iyer
[EMAIL PROTECTED] wrote:
The error I get is (ultimately):
D:\vivek\pricing\ejb\productjava ProductClient
Communication error: Error reading application-client descriptor: No
location specified and no suitable instance of the type 'Product' found
for the ejb-ref MyProduct
I have found that the cause of this error is a mistake in the ejb-jar.xml
file or in your web.xml file. In order for your app to use the nameing
context like this:
Object obj = context.lookup("java:comp/env/ejb/CreateNewUarHomeSlsb");
You need an entry in the proper deployment descriptor like this:
ejb-ref
ejb-ref-nameejb/CreateNewUarHomeSlsb/ejb-ref-name
ejb-ref-typeSession/ejb-ref-type
homecom.regtek.slsb.CreateNewUARHome/home
remotecom.regtek.slsb.CreateNewUAR/remote
/ejb-ref
I have these entries in my web.xml file for my servlets that want to access
EJBs and also in my ejb-jar.xml file for EJBs that want to access other
EJBs. Often, I mistype some part of this entry to point to a bean that does
not exist and occasionally I forget this entry entirely. Every time, I get
the error you described.
Remember, in the ejb-jar.xml file, these references are scopped for a
particular bean, so that different beans can have the same reference name
but have it point to somewhere different. Be sure to set these entries in
that deployment descriptor for each bean, within the EJBs definition. Here
is an example of a session bean I use:
session
descriptionCreate a UAR/description
display-namecom.regtek.slsb.CreateNewUAR/display-name
ejb-namecom.regtek.slsb.CreateNewUAR/ejb-name
homecom.regtek.slsb.CreateNewUARHome/home
remotecom.regtek.slsb.CreateNewUAR/remote
ejb-classcom.regtek.slsb.CreateNewUARBean/ejb-class
session-typeStateless/session-type
transaction-typeContainer/transaction-type
ejb-ref
ejb-ref-nameejb/UarHomeEb/ejb-ref-name
ejb-ref-typeEntity/ejb-ref-type
homecom.regtek.eb20.UarHome/home
remotecom.regtek.eb20.Uar/remote
/ejb-ref
ejb-ref
ejb-ref-nameejb/CrHomeEb/ejb-ref-name
ejb-ref-typeEntity/ejb-ref-type
homecom.regtek.eb20.CrHome/home
remotecom.regtek.eb20.Cr/remote
/ejb-ref
/session
This example allows my EJB session bean called CreateNewUAR to access two
other entity beans using the references ejb/UarHomeEb and ejb/CrHomeEb.
I hope this helps. Good luck.
Jim
Is this an obvious problem? I can't believe this is just happening
because I change the location of the class files and meta-inf files. I
noticed someone else got this error some time ago, but no solution was
posted. Here's the gory story, steps 1 through 7:
System: WinNT4 SP6
JDK: 1.2.2
CLASSPATH: .;
d:\orion\orion.jar;d:\orion\jndi.jar;d:\orion\servlet.jar;d:\orion\ejb.jar
1. INITIALIZED ORION, deployed the ejbsamples, and the "ProductClient"
successfully ran, out-of-the-box. All classes are located in
d:\orion\demo\ejb\product\
2. COPIED the jndi.properties, ProductEJB, ProductHome and Product (remote
interface) and ProductClient to d:\vivek\pricing\ejb\product\ and all the
meta-inf files (application-client.xml, ejb-jar.xml,
orion-application-client.xml) _without change_, recompiled all the files.
Added an application.xml file into
d:\vivek\pricing\ejb\meta-inf\application.xml with the following lines -
application
display-namePricing/display-name
module
ejbproduct/ejb
/module
/application
3. COMMENTED out the "ejbsamples" part of orion's server.xml. Deleted that
application's deployment files. Added the following application to
server.xml:
application name="pricing" path="d:\\vivek\\pricing\\ejb" /
4. RESTARTED Orion. Observed that
Auto-deploying pricing (New server version detected)...
Auto-deploying product (No previous deployment found)... done.
Orion/1.4.0 initialized
5. RAN ProductClient, and got this message -
D:\vivek\pricing\ejb\productjava ProductClient
Exception in thread "main" java.lang.SecurityException: No such
domain/applicati on: ejbsamples
at com.evermind.server.rmi.bd.gk(JAX)
at com.evermind.server.rmi.bd.gk(JAX)
at com.evermind.server.rmi.bd.f3(JAX)
at com.evermind.server.rmi.RMIServer.f3(JAX, Compiled Code)
at com.evermind.server.rmi.RMIContext.lookup(JAX)
at com.evermind.server.administration.LazyResourceFinder.f3(JAX)
at
com.evermind.server.administration.LazyResourceFinder.getEJBHome(
JAX)
at com.evermind.server.Application.aqo(JAX, Compiled Code)
at
com.evermind.server.ApplicationClientInitialContextFactory.getIni
tial Context(JAX, Compiled Code)
at
javax.naming.spi.NamingManager.getInitialContext(NamingManager.ja
va:6 72)
at
javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java
:250
Re: calling EJBs from outside orion
Hi Greg... You won't find this messsage too helpfull, except that I can tell you it can be done. I tried it and got it to work. I did so be searching the archives. I no longer have the code I slapped together, or else I would sent it to you. Bu the answer is in the mail list archive. Good luck. Jim --On Tuesday, October 17, 2000 2:52 PM +1000 Greg Matthews [EMAIL PROTECTED] wrote: dear all, is it possible to call EJBs running in orion from a java program started at the DOS command line, i.e from outside orion? i guess i might have to generate the client stubs (?). has anyone done this? this would be useful when building the ejb components to be used by the web developers. thanks, greg
I get null pointer exception after calling create on an EB with EJB2.0 CMP Orion 1.3.8...
Hi All... I'm using Orion 1.3.8 and EJB 2.0 for CMP. I have written a fairley simple stateless session bean that's job is to just create a particular entity bean and populate it. This session bean is called from a servlet. When the session bean calls create on the home interface object of the entity bean it wants to create, the create method seems to execute properly and returns null. This seems true reguardless of which of two create() methods I call. After the create() method returns but before the next line of code is executed, Orion throws the following exception: java.lang.NullPointerException at CrHome_EntityHomeWrapper7.hashCode(CrHome_EntityHomeWrapper7.java:127 ) at com.evermind.util.ExternalHashSet.get(JAX) at CrHome_EntityHomeWrapper7.create(CrHome_EntityHomeWrapper7.java:335) at com.regtek.slsb.CreateNewCRBean.makeNew(CreateNewCRBean.java:41) at CreateNewCR_StatelessSessionBeanWrapper2.makeNew(CreateNewCR_Stateles sSessionBeanWrapper2.java:54) at com.regtek.protocol_servlets.MakeCR.doPost(MakeCR.java:92) at javax.servlet.http.HttpServlet.service(HttpServlet.java) at javax.servlet.http.HttpServlet.service(HttpServlet.java) at javax.servlet.http.HttpServlet.service(HttpServlet.java) at com.evermind.server.http.d1.si(JAX) at com.evermind.server.http.d1.forward(JAX) at com.evermind.server.http.ed.sp(JAX) at com.evermind.server.http.ed.so(JAX) at com.evermind.util.f.run(JAX) Of course, I have a pile of code and descriptors, but didn't want to post all that. If it is necessary, I will do so. If someone could give me an idea of how to solve this I would appreciate it. I went through the archives and saw one other posting from Sep 22 from someone who was having this exact problem, but I could find no reply. Thanks very much. Jim
Re: Run Orion as a daemon in Linux
When you change ownership to a normal user, do you find that Orion has difficulty creating the JSP cache files? Jim --On Friday, October 06, 2000 10:33 AM -0700 Sach Jobb [EMAIL PROTECTED] wrote: We use something very similar to this, only we change the ownership to a normal user. On Thu, 5 Oct 2000, Tony Abbott wrote: This is off the top of my head but something like this should work... #!/bin/sh case "$1" in start) cd /usr/local/orion (java -server -Xmx128m -jar orion.jar ) ;; stop) cd /usr/local/orion java -jar admin.jar ormi://localhost admin 123 -shutdown ;; esac -t On Thu, Oct 05, 2000 at 06:51:06PM -0400, Sean Han wrote: Hi, everyone: I know some of you guys use linux as the platform for running Orion server. Do you use the Sys V script to startup and shutdown the Orion server? If you do, could you please send me a copy of the script? If not, is there any solution to startup the Orion server when the OS bootup? thanks! Sean -- Tony Abbott [EMAIL PROTECTED]
RE: Can't create xxxxx.jsp.jspCache files
Thanks Magnus. The problem we are having is that when Orion attempts to create those files a permission denied error is issued by Linux. This does not happen when Orion runs as user root, but rather when it runs as user orion. However, as user orion it has full control over its own directory tree, so the implication is that Orion is attempting to write outside its own directory tree. For example, if we first run Orion as user root and then execute the JSP checkbox example, the checkbox.jsp.jspCache file is created and runs. If we then run Orion as user orion the checkbox JSP example still runs, but now the other JSP examples fail because permission is denite to write a file. Here is the key: We assume the denied file is the JSP cache file, but it could be another intermediate file or something else. So we are wondering exactly how that JSP cache file is created so we can be sure to give user orion the proper permissions. I apologize if it seems that I am going on and on about this, but we can't let Orion run as user root and we can't leave all Orion files world writable. So we are looking for a solution that is secure. Thanks again... Jim --On Tuesday, October 03, 2000 9:05 AM +0200 Magnus Rydin [EMAIL PROTECTED] wrote: Jim, the cache files are normaly written to the 'persistence' directory under the applications deployment directory. For example, the default-web-app's jspCache files gets written to /orion/application-deployments/default/defaultWebApp/persistence/ WR -Original Message- From: Jim Archer [mailto:[EMAIL PROTECTED]] Sent: den 3 oktober 2000 08:40 To: Orion-Interest Subject: Can't create x.jsp.jspCache files Hi All... When we run Orion under Debian Linux as user orion where orion has permission to write into its directory tree, an attempt to create the JSP files x.jsp.jspCache fails (permission denied). If we run Orion as root, it runs fine and creates the files, which persist. If we then run orion again as user orion, the JSP examples that we ran when Orion was root run fine, indicating that Orion, when running as user orion, can at least read these files. So, my question is, exactly what does Orion do and where does it write when it makes those xxx.jsp.jspCache files? If we know this, we should be able to configure our system to give Orion the correct permissions. Thanks... Jim
Is 1.3.8 EJB 2.0 draft complete?
Hi All... Is the implementation of the draft EJB 2.0 spec in Orion 1.3.8 complete with respect to the draft, Including EJB QL and 1-n E relationships? Thanks... Jim
Stupid EJB2.0 build question
Hi All... I'm trying to build the ATM example that came with Orion 1.3.8. The stupid build question is, what do I have to put in the CLASSPATH to get it to build? I can't get the AccountEJB.java file to build, since it can't find javax.ejb. I expect I don't include anything from the J2EE RI, like I did for EJB 1.1? Thanks... Jim
Re: Stupid EJB2.0 build question - NEVER MIND!
OOPS... Never mind. It was a stupid question. Sorry for wasting your bandwidth. Jim --On Saturday, September 30, 2000 10:45 PM -0400 Jim Archer [EMAIL PROTECTED] wrote: Hi All... I'm trying to build the ATM example that came with Orion 1.3.8. The stupid build question is, what do I have to put in the CLASSPATH to get it to build? I can't get the AccountEJB.java file to build, since it can't find javax.ejb. I expect I don't include anything from the J2EE RI, like I did for EJB 1.1? Thanks... Jim
What database are you using??
Hi All... I'm currious to know what database products people are using with Orion, open source or commerical. Also, please include any comments about problems if you have had any, or anything thats really great. Thanks! Jim
Re: What database are you using??
Hi David... If Orion server is used in conjunction with a database that does not support transactions, then are transactions lost to the EJB server, or does Orion somehoe provide that capability? Thanks... Jim --On Friday, September 29, 2000 9:12 PM -0400 David Morton [EMAIL PROTECTED] wrote: MYSQL very successfully. David SkyLabs Corporation At 08:44 PM 9/29/00 -0400, you wrote: Hi All... I'm currious to know what database products people are using with Orion, open source or commerical. Also, please include any comments about problems if you have had any, or anything thats really great. Thanks! Jim
Re: Orion on Linux NOT as root
Thanks to all who replied. Acually, my original message was not too well written. I was not concerned about the port mapping issue. Thats not a big deal. We already have that issue with other processes, such as Apache, which runs as user nobody. Our issue is where to install Orion, what permissions each file should have, what user Orion should run as and so on. We would prefer Orion not run as root (we don't let Apache run as root either) and that its files not all be world writable by default (which is what happens when we unzip it onto our Debian system). Mostly, we need to know what directories Orion needs to write in, what ones it does not, which files it needs to edit and so on. Below is a note from the guy who has been working on this. He explaines our problem and the partial solution he worked up in detail: Jim, I figured out most of the pieces needed to do it, but we still have a problem. This all applies to Orion 1.3.8 running on Debian Linux 2.2 "Potato" with a 2.2.14 (patched) kernel and IBM JDK 1.3.0 build cx130-2815. 1. The main issue these people are discussing on the list is how to get the server to listen on port 80, which is not our issue. On Unix, only "root" can connect to ports below 1024. This is actually a trivial problem, since the solution is to have the Orion server listen on some other port, like 8080, and have a simple shim running as root that proxies port 80 to that other port. 2. What was causing us grief was exactly what I thought was causing us grief. The file structure is Windows-like, and it has to be shoehorned into a proper Unix structure. Basically, I split the Orion directory structure into a bunch of things that Orion itself should never have write permission for, which is now in /usr/local/share/orion and is owned by "root," and into a bunch of things that Orion itself does need write permission for, which is now in /var/local/orion and is mostly owned by the new "orion" user. It is necessary to edit the XML files in /usr/local/share/orion/config to account for this. What actually must be moved to /var/local/orion is only three directories: guardian:~$ ls -l /var/local/orion drwxr-sr-x3 orion orion4096 Jul 5 14:40 application-deployments drwxr-sr-x4 rootstaff4096 Sep 28 16:03 default-web-app drwxr-sr-x2 orion orion4096 Sep 28 03:44 log drwxr-sr-x3 orion orion4096 Jun 5 14:38 persistence I also moved "default-web-app" here, although only the "WEB-INF" directory below it needs to be writable to the server: guardian:~$ ls -l /var/local/orion/default-web-app/ drwxr-sr-x3 orion orion4096 Sep 28 16:11 WEB-INF drwxr-sr-x8 rootstaff4096 Jun 5 14:38 examples -rw-r--r--1 rootstaff2044 Sep 28 16:03 index.html (Note that the Orion server does not seem to handle CRLF end-of-line conventions, and I had to convert "index.html" to LF-only in order to get things working without errors. Of course, that is a very minor problem, but it explains why the timestamp on the file is recent.) In the "WEB-INF" directory, the "classes" subdirectory does not appear to need to be writable by the server: guardian:~$ ls -l /var/local/orion/default-web-app/WEB-INF/ drwxr-sr-x9 rootstaff4096 Jun 5 14:38 classes -rw---1 orion orion 386 Sep 28 15:37 web.xml 3. Now, this arrangement ALMOST works. The first time a particular JSP file is invoked the server tries to create directores below /var/local/orion/application-deployments/default/defaultWebApp/persistence/ examples/jsp such as "checkbox" for the checkbox example and "num" for the numberguess example, and then it tries to create x.jsp.jspCache files in these subdirectories (where "x" is the base name of the JSP file). This works only if the server is started by the "root" user, but not if the server is started by the "orion" user. Since the entire tree from /var/local/orion/application-deployments down is owned by the "orion" user who has full permissions, this makes no sense: guardian:~$ ls -l /var/local/orion/application-deployments/default/defaultWebApp/persistence/ examples/ drwx--4 orion orion4096 Sep 28 17:46 jsp Once the directory and the x.jsp.jspCache file have been created by invoking the JSP file the first time with the server started by the "root" user, ownership of this directory and its contents can be changed manually to the "orion" user and the server can then be started as the "orion" user. At that point, any JSP for which the appropriate x.jsp.jspCache file already exists will work. My guess is that the server is somehow trying to drop privilege or otherwise change its euid when it does whatever it does to build the x.jsp.jspCache files. When this fails, we get an error message (in the browser from which the JSP invocation was attempted) like this: 500 Internal Server Error Error parsing JSP page /examples/jsp/dates/date.jsp IO Error:
Re: Using strut with Orion
Here's the URL for the latest version of the Jakarta Struts User's Guide: http://jakarta.apache.org/cvsweb/index.cgi/~checkout~/jakarta-struts/web/do cumentation/users_guide.html Be aware that this link actually checks it out of publicly accessible CVS in order to display it in your browser. Jim --On Saturday, August 26, 2000 2:14 AM -0400 Jason Rimmer [EMAIL PROTECTED] wrote: Where is information for Apache struts available? I looked around the Apache Org's website a bit and couldn't find a reference to it. I assume it's part of a larger Java project. -- Jason Rimmer [EMAIL PROTECTED]
RE: 1.2 GUI tools - Do they work?
I agree that if I could get it to work it would sure not be pointless, so that why I tried. Maybe you can help me? If I click "add bean" I then get a dialog with three text fields in which I am supposed to specify a bean. What should I type there? A full path to the class file? Just the bean name? Whatever I type, it says it can't find it. I t complaines specifficially about the actual bean. It never complains abut the first two entries (I think they were the remote interface and home interface, but thats off the top of my head). I did see it automatically added EJB after the name, which for my stuff is wrong. I changed the EJB to Bean, which is the correct name of my beans. Could that be it? Thanks... Jim --On Thursday, August 24, 2000 9:09 AM +0100 Robert Hargreaves [EMAIL PROTECTED] wrote: I've been using the ejbassembler with 1.2 successfully since it came out and it works great (apart from the JTree not showing on startup). Don't really understand why its 'pointless', I mean what else is quicker when deploying CMP entity beans? Just my ten bob. Regards Rob Hargreaves -Original Message- From: Mike Cannon-Brookes [mailto:[EMAIL PROTECTED]] Sent: 24 August 2000 07:30 To: Orion-Interest Subject: RE: 1.2 GUI tools - Do they work? Never used the assembler (pointless tool IMHO *g*) but the ejb maker works? Save only saves a skeleton. You're looking for "Create Beans At" then select a folder (don't open it, select it) and hit create or save button (can't remember) Presto! Mike -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jim Archer Sent: Thursday, August 24, 2000 3:50 PM To: Orion-Interest Subject: 1.2 GUI tools - Do they work? Hi All... I have just lost the battle with the GUI tools that came with Orion 1.2, which I realize is a beta. Are they supposed to work? I got the console to work, but I was unable to get the EJB Maker or the EJB Assembler to work. In the case of the EJB Maker, hitting the save button when I wanted to create my beans did nothing (I was able to save the skeleton). This was true whether I asked for 2.0 or 1.1 version beans. In the cas of the EJB Assembler, I was unable to add beans. I would try to add a bean and would get the dialog that asks for the name of the bean, but no matter what I typed it complained it could not find it. I tried just the bean name, a full path with drive letter, a full pate without the drive letter, a partial path, with the .class extensions and without. No luck. If they are supposed to work, I would sure appreciate some hints. If not, thats OK. Heck, they are beta. But at least I'll know not to bother. I have killed the entire evening on deployment issues (very little success). Time for bed. Thanks! Jim
Re: EJB deployment example?
I don't fully understand the Orion primer either. In particular, I don't understand the directory structure. Does each servlet need its own directory? I could really benefit from a more comprehensive guide to what goes where, including stateless and statefull session beans, entity beans, and servlets and regular HTML files... If anyone knows of such a guide, I would appreciate it if you could refer me to it... Thanks! Jim --On Wednesday, August 23, 2000 2:15 AM +1000 James Ho [EMAIL PROTECTED] wrote: Hi all, Anyone has any EJB deployment examples apart from the orion primer? I don't fully understand the orion primer...One of the main questions is "Where are the beans deployed?" I saw the source code for the servlet client that it is at "java:comp/env/ejb/HelloHome", but where is it defined? Also, if I want to deployed my beans at some remote host, where do I set that info? I saw there is a jndi.properties files in the other examples, how would I add that in the orion primer example? Thanks heaps James
RE: Documentation initiative
I agree with all these comments... As a new Orion user, I'm most interested in seeing live samples that do more than the most basic things. Also, I have had the most trouble with deployment. So, several good, easy to follow source samples with deployment descriptors and the deployment procedures outlines would be really, really great... Jim --On Monday, August 21, 2000 10:54 AM +1000 Mike Cannon-Brookes [EMAIL PROTECTED] wrote: These are all good ideas Kevin, I agree contributing docs to OrionSupport is a good idea, but docs themselves can be tricky to write - if I'm interpreting the list correctly, it's _sample applications_ that people want. Perhaps if people have code / apps they don't mind Open Sourcing, we could get a library of 'good', well documented applications on Orion Support? (I have one HUGE app that will be out within the next two weeks that is OSS and uses everything Orion has to offer) As for the tools, I've told the team many times that my personal opinion is tools should be Open Source. They don't sell the tools, they sell the app server. I know myself, Joseph, Victor and a few of the other 'Orion oldies and know-it-alls' would be happy to hack at the admin tools to make them better. (And with the upcoming J2EE Management Spec we could make them kick ass tools for _any_ app server, which ironically would bring more cred to Orion if we could best WL's buggy console) Installer is not so useful IMHO, I'm sure the Orion team are working on tools to tweak the running server's values, and setting up the initial values are pretty much what Orion does out of the box? Mike -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Kevin Duffey Sent: Monday, 21 August 2000 7:53 To: Orion-Interest Subject: Documentation initiative Hey all, Since so many of us love Orion, or are trying to love it but have problems understanding some things, how bougt we help out the Orion team by documenting as much as we can? I for one have been using it for quite some time and have some knowledge of some areas. I would love to learn other areas as they become available. Joseph is doing a good job with orionsupport.com, and he has asked for any contributions. For those of us that feel we know the product somewhat well, lets do our part. Hell, unlike other products, Orion is free for everything except production, and that cost is a fraction of the cost of other app servers. Also, while the team hasn't opened up the source or anything for us to contribute, I was thinking of doing a Wizard installer in Java, but I am not very good with SWING. Right now you unzip, configure the xml files, and let it rip. Maybe a simple installer that the team can use and package that has a wizard interface for setting up the common areas would be nice. Anyone want to help with this? Would the Orion team mind if we help out in these areas? May be a while as I don't have much time, but it might help on the installation woes some people seem to have. If anyone to everyone is in agreement (including Orion team), lets help kick the Orion App Server into high gear so it can kick the crap out of those much much much more expensive app servers that don't quite follow the standards as well. If all in favor, maybe we can start off a chapter index in this list (or on the orionsupport.com site) and contribute to areas needing documentation as well as writing those. Also, I believe a good "review" of docs by all involved would allow for the most accurate docs instead of relying on faith of one person. No offense, but I sure don't want people reading what I write assuming its 100% right. I would rather have others look it over and make sure it makes sense, is easy to follow along and actually works as stated. Awaiting replies.
Does Orion support TLS?
Hi All... I was wondering if Orion supports TLS in addition to just SSL? Thanks! Jim
Orion as EJB server only?
Hi All... I have been looking for an inexpensive EJB development/deployment platform. Orion looks to be a good choice, especially since it fully implements EJB 1.1. My question, though, has to do using the EJB server without the web server portion. I need an EJB server that can have client applications communicate with it directly, using the remote interface objects (and RMI or IIOP). Therefor, can I disable the web server part of Orion, or else simple ignore it? I also would like to run Apache on the same machine as Orion. Is this a problem (assuming, of course, I can turn the Orion web server off or change its port)? Thanks! Jim
EJB Deployment
Hi All... A look through the archives seems to indicate this question is often asked but I didn't see an answer... Two people here have spent the afternoon trying to deploy EJB beans under orion. No luck. Is there any documentation or guide, beyond the docs that came with Orion, available? We are getting errors that indicate the server can't find our calsses, and have not been able to fix this problem or get even simple beans to deploy. Any hints or information would be appreciated. Thnaks! Jim
Re: J2EE SDK Deployment tool
I have a dumb question... Whats an EAR file? Thanks... Jim --On Wednesday, May 03, 2000 11:09 AM +0100 "Robert Keith (UK)" [EMAIL PROTECTED] wrote: Hi Guys, Can I use the J2EE SDK tool to create EAR files and then use these EAR files with Orion? If so can you guys point me in the direction of the docs, or provide some useful tips on doing this. thanx Robert
