WG: OJB 1.0.3 : afterLookUp() in PersistencebrokerAware

2005-08-16 Thread Mahler Thomas (ITELLIUM)
-Ursprüngliche Nachricht- Von: Ravi Aramanethota [mailto:[EMAIL PROTECTED] Gesendet: Montag, 15. August 2005 15:52 An: [EMAIL PROTECTED] Betreff: OJB 1.0.3 : afterLookUp() in PersistencebrokerAware Hi Thomas We are using OJB 0.9.8 for last two years and now when I upgrade it to

OJB code statistics

2004-10-13 Thread Mahler Thomas
hi all, I used the tool sloccount (http://www.dwheeler.com/sloccount/) to run some elemantary Lines-of-Code code statistics on the OJB source code. The cool thing about sloccount it also gives a cocomo based cost estimate. cheers, Thomas SLOCDirectory SLOC-by-Language (Sorted) 63446

RE: in-memory persistence

2004-10-08 Thread Mahler Thomas
Hi all, Armin is right, my Prevayler code is far from being complete. For instance there is no query implementation available. You can lookup objects only by Identity. The Prevayler PB does also not rely on repository.xml information. Currently the Prevayler PB is undocumented and not recommended

FW: JTA Transaction with OJb

2004-09-20 Thread Mahler Thomas
Hi, I am trying to use the JTA Transaction with OJb. Can you please give me some articles / code links where i can get a reference implementation. I want to use it with weblogic server. Thanks and regards, Sudhakar Cognizant Technology Solutions India Pvt Ltd. Tidel Park - 6th Floor,

RE: Official implementation request.

2004-08-20 Thread Mahler Thomas
Hi Nathan, If you have a compound primary key of say 7 columns and 6 of them are (or can be) blank or null then only the seventh column can be used as a real primary key. So from an OJB point of view you could just solve the issue by declaring on the seventh column as primary key in the

RE: Storing Objects inside a Collection

2004-07-23 Thread Mahler Thomas
Hi Björn, Yes, that's possible. The OJB default Collection implementation RemovalAwareCollection provides tracking of removing and adding objects. Thomas -Original Message- From: Björn Voigt [mailto:[EMAIL PROTECTED] Sent: Friday, July 23, 2004 3:32 PM To: [EMAIL PROTECTED]

RE: save point support

2004-07-12 Thread Mahler Thomas
Hi Zhe, It depends on the API you use. PB and JDO Transactions do not provide checkpoints. But ODMG and OTM do: org.apache.ojb.otm.core.Transaction.checkpoint() org.odmg.Transaction.checkpoint() cheers, Thomas -Original Message- From: ZZZ Liu [mailto:[EMAIL PROTECTED] Sent:

[ann] new release: OJB 1.0

2004-06-30 Thread Mahler Thomas
Dear all, I'm very happy to announce the final 1.0 release of OJB. After a long series of release candidates we finally got enough confidence in our software to call it ready for prime time. As you can see by our ever growing list of junit tests we pay attention to quality assurance. So the

RE: Dynamic statement, urgent

2004-05-18 Thread Mahler Thomas
Hi Norbert, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Monday, May 17, 2004 6:49 PM To: [EMAIL PROTECTED] Subject: Dynamic statement, urgent Hello, OJB uses prepared statements to run select statements. Is there a way to convince OJB to use

RE: How to persist a HashMap

2004-04-27 Thread Mahler Thomas
Hi, It's not neccessary to store Maps and Sets in Blobs. You can store HashMaps as any other collections by using a collectiondescriptor: Java: HashMap myHashMap; Repository: collection-descriptor name=myHashMap element-class-ref=my.elementClass

RE: Possible circular reference BUG

2004-03-05 Thread Mahler Thomas
Which cache implementation are you using? how are your reference- and collection-descriptors defined? Thomas -Original Message- From: Nadir Timanga [mailto:[EMAIL PROTECTED] Sent: Friday, March 05, 2004 3:56 PM To: [EMAIL PROTECTED] Subject: Possible circular reference BUG Hye,

RE: Newbie Question

2004-03-03 Thread Mahler Thomas
Hi Gavin, The ojb-blank target is a template for your own projects. To simply build ojb use the target release. Thomas -Original Message- From: Gavin Paul Selvaratnam [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 03, 2004 7:46 AM To: '[EMAIL PROTECTED]' Subject: Newbie Question

RE: Why is the adress http://db.apache.org/ojb/clientserver.html offline?

2004-02-17 Thread Mahler Thomas
Hi Sven, The client-server stuff has been removed from the distribution quite some time ago. It's not longer supported. I've also removed clientserver.html page. If you have any further question, don't hesitate to ask. Thomas -Original Message- From: Sven Alisch [mailto:[EMAIL

RE: Transaction Problem.

2004-02-09 Thread Mahler Thomas
If you use Identity queries you will load objects from the cache. But if you use criteria based queries an SQL query is executed against the DB. -Original Message- From: Ziv Yankowitz [mailto:[EMAIL PROTECTED] Sent: Monday, February 09, 2004 4:34 PM To: OJB Users List; [EMAIL

RE: JDO Query Performance

2004-02-09 Thread Mahler Thomas
Hi Gus, -Original Message- From: Gus Heck [mailto:[EMAIL PROTECTED] Sent: Monday, February 09, 2004 4:42 PM To: OJB Users List Subject: Re: JDO Query Performance SO all you can do for the moment is to wait for our own full JDO implementation that will not have such

RE: JDO Collections

2004-02-06 Thread Mahler Thomas
Hi Gus, The current JDO implementation does not inherit the ODMG stuff. You should use simple java.util.Collection attributes for your collections. You'll have to define collection-descriptors with auto-retrieve=true, auto-update=false and auto-delete=false. cheers, Thomas -Original

RE: ojb-tags

2004-01-20 Thread Mahler Thomas
Hi Saman, The ojb-tags are part of the contributions package. This archive contains contributions that are not part of the maintained distribution. The Ojb Tags library was developed by Jacob Hookom (Jacob.Hookom at redline.mckhboc.com) for 1.0.RC3. I think it makes sense to talk directly to

RE: New XDoclet OJB module version

2004-01-20 Thread Mahler Thomas
OK, so we'll wait a bit longer... cheers, Thomas -Original Message- From: Thomas Dudziak [mailto:[EMAIL PROTECTED] Sent: Monday, January 19, 2004 10:55 AM To: OJB Users List Subject: RE: New XDoclet OJB module version On Mon, 19 Jan 2004, Mahler Thomas wrote: Hi Tom

RE: New XDoclet OJB module version

2004-01-19 Thread Mahler Thomas
Hi Tom, Wow, what a large cvs commit! This must have been a lot of work! Thanks for your hard work! Do you think it's reasonable to bring out 1.0 next weekend including your updated version? Or should we wait a bit longer to check in any possible fixes? cheers, Thomas -Original

RE: Prevayler and OJB

2004-01-19 Thread Mahler Thomas
Hi Gonzalo, Currently there is no documentation available that covers the prevayler stuff! The reason for this is that the prevayler based PersistenceBroker implementation is not yet finished! It works fine for the basic persistence Operations (.getObjectByID(), .store(), .delete()), But I did

RE: JDO - Unable to build object instance

2003-12-17 Thread Mahler Thomas
Hi Sebastian, Does your class have a public default constructor? -Original Message- From: Sebastian Muench [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 17, 2003 1:42 AM To: OJB Users List; [EMAIL PROTECTED] Subject: R: JDO - Unable to build object instance Oh, the file

RE: Sample ant build files for OJB?

2003-12-17 Thread Mahler Thomas
This should get you started: http://db.apache.org/ojb/getting-started.html -Original Message- From: De Swert Pierre (GFDI) [mailto:[EMAIL PROTECTED] Sent: Wednesday, December 17, 2003 10:33 AM To: OJB Users List Subject: Sample ant build files for OJB? Hi all, I have

FW: Unusual object relation mapping possible with OJB ?

2003-12-16 Thread Mahler Thomas
-Original Message- From: Mahler Thomas Sent: Tuesday, December 16, 2003 2:10 PM To: 'Stefan Schlösser' Subject: RE: Unusual object relation mapping possible with OJB ? Hi Stephan, Hi Thomas, Sure, I need the link table. I read throught the examples in the link

RE: Unusual object relation mapping possible with OJB ?

2003-12-15 Thread Mahler Thomas
Hi Stefan, What you describe is in essence a m:n association between Address and Person. A Person may have multiple Adresses An Address may have multiple Persons associated. Apart from the tables ADDRESS and PERSON you also need an intermediary table LINK OJB provides out of the box support

RE: install jdo-api

2003-12-12 Thread Mahler Thomas
Hi Sebastian, You encounter a version conflict here. OJB/JDO RC4 is written against JDORI 1.0 OJB/JDO RC5 (current CVS HEAD) is written against JDORI 1.0.1. It seems that you downloaded the new 1.0.1 Version of the JDORI. So you could either work with the latest CVS HEAD or download the 1.0

RE: How does ODMG work?

2003-12-10 Thread Mahler Thomas
exactly! -Original Message- From: Jewett, Diane C [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 09, 2003 7:17 PM To: OJB Users List; [EMAIL PROTECTED] Subject: RE: How does ODMG work? So does it mean that it is no different then: select * from Product -Original

RE: JDO Bug (status please)

2003-12-09 Thread Mahler Thomas
of debugging through the JDORI. But in the end the coding itself took only a few hours.) I will review your patch this weekend. So I hope we get you started by next week! thanks for your patience and also for sharing your patch! - thomas -Gus Mahler Thomas wrote: Hi

RE: JDK 1.4 dependency in SqlTypeHelper.java

2003-12-09 Thread Mahler Thomas
Hi Gerhard, we will continue to provide JDK1.2 and JDK1.3 support. All compilation dependencies will be fixed by next weekend. cu, thomas -Original Message- From: Gerhard Grosse [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 09, 2003 3:58 PM To: [EMAIL PROTECTED] Subject: JDK

RE: Problem with DB2 on z/OS

2003-12-03 Thread Mahler Thomas
Hi Matthias, Hi I try again to get help from some one. We try to run multiple users (up to 3000) to a webbased prototype that uses OJB and runs on Websphere 4.x on z/OS. The Database is DB2. Run the tests with one user works. Run the test with more then one (50 or 100) we get in moste

RE: JDO Bug (status please)

2003-12-03 Thread Mahler Thomas
through the discussion referenced below and having trouble picking out what exactly the work around is... If you or someone else could post a direct workaround for getting a list of all objects of a class that are persistant it would help a lot. TIA, Gus Mahler Thomas wrote: Hi

RE: SQL Exception

2003-11-26 Thread Mahler Thomas
Hi Michael, The ODMG exceptions do contain the original SQL exceptions to provide user with helpful information. I think you could easily patch the RollbackException to wrap the odm exception. cu, Thomas -Original Message- From: Michael Becke [mailto:[EMAIL PROTECTED] Sent: Tuesday,

RE: Persistence frameworks

2003-11-24 Thread Mahler Thomas
Hi Max, YAC (Yet another clarification): snip EH!!? Huh! explain please ;) How can you synchronize/lock in memory without locking or synchronization mechanisms ?! You are right, we do the lock management with a pluggable component called LockManager. I just wanted to say

RE: Collection of string

2003-11-24 Thread Mahler Thomas
Hi there is a very nice feature in OJB to handle this: 1. Define your DB coulm as VARCHAR. 2. in the repository_user.xml you set conversion=org.apache.ojb.broker.accesslayer.conversions.StringVector2Varch arFieldConversion 3. That's all! All strings of your Vector get concatened and written to

RE: PersistenceBroker and Record Locking

2003-11-20 Thread Mahler Thomas
OJB does not support row level locking. But you can use the Optimistic Locking feature of the PersistenceBroker: http://db.apache.org/ojb/faq.html#How%20to%20set%20up%20Optimistic%20Locking cu, Thomas -Original Message- From: Rama Mohan Pacific Net [mailto:[EMAIL PROTECTED] Sent:

RE: Persistence frameworks

2003-11-19 Thread Mahler Thomas
KISS == Keep It Simple, Stupid -Original Message- From: Markus [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 19, 2003 9:38 AM To: OJB Users List Subject: Re: Persistence frameworks Hello, I've followed the descussion about hibernate and OJB. Yes - that's probably the

RE: Persistence frameworks

2003-11-19 Thread Mahler Thomas
Hi again, some more clarifications ;-) snip Ok - this sounds VERY much similar to what Hibernate provides in the core. The ODMG implementation *does not* require any additional tables in general! - If you want to use special persistent collections (DList, DMap, etc) you must

RE: Persistence frameworks

2003-11-19 Thread Mahler Thomas
regards, Max -Original Message- From: Mahler Thomas [mailto:[EMAIL PROTECTED] Sent: Monday, November 17, 2003 4:53 AM To: 'OJB Users List' Subject: RE: Persistence frameworks Hi Max, Hi! Just want to ask/clarify some stuff on this one - sorry for the late answer

RE: About Druid.

2003-11-18 Thread Mahler Thomas
Hi Antonio, I have no problems with the Druid discussion so far. cheers, Thomas -Original Message- From: Antonio Gallardo [mailto:[EMAIL PROTECTED] Sent: Monday, November 17, 2003 9:04 PM To: [EMAIL PROTECTED] Subject: About Druid. Hi: I am happy of the growing interest in

RE: JDO Bug (status please)

2003-11-18 Thread Mahler Thomas
Hi Nick, Hi- An earlier thread on this list: http://www.mail-archive.com/[EMAIL PROTECTED]/msg03832.html describes a _serious_ bug in the JDO interface to OJB. I posted about this last week and haven't gotten a response yet. I'm really hoping that someone can shed some light on the

RE: Archives... http://db.apache.org/mail.html

2003-11-17 Thread Mahler Thomas
Hi again, I am just looking for a link, from db.apache.org which is easy to find, and always working. If I have to use google to do a +site:www.archive.dom/path then so beit. Just a link, is that too much to ask for? 1. Giving you the link is a problem if the target URLs are

RE: Question about getIteratorByQuery

2003-11-10 Thread Mahler Thomas
Hi again, -Original Message- From: A Leg [mailto:[EMAIL PROTECTED] Sent: Monday, November 10, 2003 9:17 AM To: OJB Users List Subject: Re: Question about getIteratorByQuery Thomas Thanks for you answer. Ok for a simple database call, but when we make this call to the

RE: PhillyJug OJB (and Spring) Presentation

2003-11-07 Thread Mahler Thomas
Hi Brian, there are two OJB Presentations online that might serve as a starting point: http://cvs.apache.org/viewcvs.cgi/*checkout*/db-ojb/contrib/cavaness-ajug-sl ides.pdf?rev=HEAD http://cvs.apache.org/viewcvs.cgi/*checkout*/db-ojb/contrib/ojb-dataccess.pd f?rev=HEAD Currently Martin Poeschl

RE: PB error when the browser is stoped

2003-11-05 Thread Mahler Thomas
Hi Sylvain, snip Just some question to be sure to understand: How could you define a thread in this case? The servlet engine uses parallel WorkerThreads to handle all incoming requests. So you have to make sure that parallel servlet threads don't access the broker variable without proper

RE: Loading an object

2003-11-04 Thread Mahler Thomas
Hi Florin, snip Regards, Florin PS: I have another question: is it possible in OJB to map an object field to a calculated value. For example I have a birthday column in PERSON table and I want to have in the Person class a field age containing the age of the person( age =

RE: Lock and PB API

2003-11-04 Thread Mahler Thomas
Hello Vincent, Hi, How can I use a lock mechanism with the PB API? The OJB PB does support optimistic locking based on timestamps and versions. http://db.apache.org/ojb/faq.html#How%20to%20set%20up%20Optimistic%20Locking Is there a way to use pessimistic lock mechanism with this API?

RE: EnhancedOQLQuery and Query

2003-10-29 Thread Mahler Thomas
Hi Anton, You should direct questions regarding OJB to our user mailing list. To answer your question: The standard ODMG OqlQuery does *not* provide iterator facilities. That's one of the reasons why we provide an enhanced query that is a *superset* of the standard Query. It provides

RE: Proposal - newObjectIdInstance / Identity JDO compliant

2003-10-29 Thread Mahler Thomas
Hi again, snip My argument here is that the JDO spec does not contain an Identity object. It does also not contain any formal contract between Identity objects and the PersistencecManager. So using Identity.serialize() is not against the JDO. Here I'm not agree with you.

RE: how to get objects locked by a transaction?

2003-10-29 Thread Mahler Thomas
may be misunderstodd as there is no clear distinction between PB and ODMG API. Sorry for the confusion Thanks, Jair Jr - Original Message - From: Mahler Thomas [EMAIL PROTECTED] To: 'OJB Users List' [EMAIL PROTECTED] Sent: Wednesday, October 29, 2003 9:44 AM Subject: RE: how

RE: how to get objects locked by a transaction?

2003-10-29 Thread Mahler Thomas
Hi Hi Thomas, Correct me please if I am wrong, ObjectEnvelopeTable and related cache cleaning on abort-transaction is an ODMG feature. exactly! The PersistenceBroker API does not offer this feature, so the documentation at http://db.apache.org/ojb/objectcache.html is correct

RE: Custom SequenceManager

2003-10-28 Thread Mahler Thomas
In OQL Queries strings must be escaped: String id = \7f653507-0a28-0c51-0153-e0c0206f7a20\; Thomas -Original Message- From: Robert J Celestino [mailto:[EMAIL PROTECTED] Sent: Monday, October 27, 2003 10:20 PM To: OJB Users List Subject: Custom SequenceManager Hello, I

RE: JDO - newObjectIdInstance() method failed

2003-10-28 Thread Mahler Thomas
Hi Christophe, The OjbStoreManager implements newObjectIdInstance as follows: public Object newObjectIdInstance(Class pcClass, String str) { return Identity.fromByteArray(str.getBytes()); } The input this method expects is a String generated by a call to Identity.serialize()

RE: how to get objects locked by a transaction?

2003-10-28 Thread Mahler Thomas
Hello Jair, OJB ODMG stores each registered Objects in an o.a.ojb.odmg.ObjectEnvelope. All ObjectEnvelopes are kept in an o.a.ojb.odmg.ObjectEnvelopeTable. ObjectEnvelopeTable has a public method public Enumeration elements(); which returns an Enumeration of all ObjectEnvelopes. The each OJB

RE: Sql command to compact database

2003-09-19 Thread Mahler Thomas
Yes you can execute any SQL code with QueryBySQL -Original Message- From: Axel Hohaus [mailto:[EMAIL PROTECTED] Sent: Friday, September 19, 2003 10:13 AM To: OJB Users List Subject: Sql command to compact database Hi, Is it possible to send a SQL-statment to database with

RE: XDoclet and DMapImpl

2003-09-18 Thread Mahler Thomas
Hi Roman, I think this is a simple classpath problem. You have to make sure that the ojb jar is on the classpath for the Xdoclet process. Thomas Hello All, I am using XDoclet to create mappings and torque files. In my classes I am using OJB implementation of Map interface DMapImpl for

RE: Prevayler based PB implementation

2003-09-15 Thread Mahler Thomas
Hi Joss, Hi, I know it sounds obvious but perhaps the Prevayler project team may consider changing the license to ASF. It might be worth asking the question at least. Yes, I will contact them. It could even make sense to host prevayler as part of db.apache.org. Does the ASF license

RE: Prevayler based PB implementation

2003-09-15 Thread Mahler Thomas
Hi Michael, The example I gave was for GPL. I know that things are different for LGPL. But still there is a very strict policy at Apache, not to ship any LGPL or GPL stuff. They even rewrote certain libraries (Regexp http://jakarta.apache.org/regexp/index.html id a well known example) only

RE: Really difficult OJB question - Help!

2003-09-12 Thread Mahler Thomas
Hi Rick, please post further requests to the ojb user list, not to developers directly. To answer you question. If you select a person object, OJB will load all Application objects that belong to that person. You have to selct from the Application class and must use criteria that specify the

RE: versioning and OJB

2003-09-12 Thread Mahler Thomas
1. In your table you need a dedicated column of type INTEGER or TIMESTAMP . Say the column is typed as INTEGER and named VERSION_MAINTAINED_BY_OJB . 2. You then need a (possibly private) attribute in your java class corresponding to the column. Say the attribute is defined as:

RE: Can't find xdoclet ojb module

2003-09-11 Thread Mahler Thomas
Hi Neil, The module is distributed with OJB rc4. you'll find it in the lib directory. the documentation ships with the conribution package: http://db.apache.org/builds/ojb/1.0.rc4/db-ojb-1.0.rc4-contrib.tgz There is an ant target repository-files in the build.xml file that demonstrates the

RE: Antwort: RE: Transactions with PB-API

2003-09-11 Thread Mahler Thomas
Hi Lasse, Poet has excellent material on ODMG in their community area: http://community.fastobjects.com/community_documentation_oss61.htm You have to sign in, but it's really worth it. cheers, Thomas -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent:

Please vote!

2003-09-11 Thread Mahler Thomas
Hi all, There's a survey at Websphere-world on persistence frameworks: http://www.websphere-world.com/modules.php?name=SurveyspollID=23 They want to know which persistence layer you are using. I'd be happy to see some more OJB votes ! cheers, Thomas

FW: Good/Best Practices with OJB

2003-09-08 Thread Mahler Thomas
-Original Message- From: Partani, Sunil [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 02, 2003 11:31 PM To: [EMAIL PROTECTED] Subject: RE: Good/Best Practices with OJB Hi, I was curious if you have any examples on how to use nested fields in repository.xml? I am trying

RE: [FAQ] Re: Why select by insert?

2003-08-14 Thread Mahler Thomas
Hi again, Thomas, Is there any equivalent features in ODMG api? No, In ODMG the tx.lock(obj) performs the check against the DB to assign the correct state to the locked instance. There is no way to modify this behaviour. cheers, Thomas -Original Message- From: [EMAIL PROTECTED]

RE: JDO - Objects fetched from DB are in transient state, not persistent

2003-08-08 Thread Mahler Thomas
Hi Ketan, Thomas, I was wondering if you'd been able to determine the right way to proceed with this. I hope to fix the problem within the next 3 weeks. If I understood correctly before, the JDO layer is broken and has been for some time. But that can't be right, since other

RE: New to OJB -- Should We Use IT ?

2003-07-30 Thread Mahler Thomas
Hi Ben, Dear List, O.k. so maybe we can use the persitance broker for our commercial project. if there is no license issues. BUT could anyone comment on the following project requirements, and say how effective ojb is to do the task ? 1) Should be able to work with IBM DB2, SQLserver

RE: Problem with RC4

2003-07-30 Thread Mahler Thomas
http://cvs.apache.org/viewcvs/db-ojb/src/test/org/apache/ojb/OJB.properties. diff?r1=1.47r2=1.55diff_format=h -Original Message- From: Julian Exenberger [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 29, 2003 3:43 PM To: OJB Users List; Armin Waibel Subject: RE: Problem with RC4

RE: RC4 does not compile with JDK1.3*

2003-07-29 Thread Mahler Thomas
Hi Akhil, Because java.util.IdentityHashMap is used soem where... I need to compile using JDK1.3 becuase our environement can not migrate to JDK1.4 for long time any known ways/plans to work arround... We are commited to ship OJB compatible for JDK 1.2, 1.3, 1.4. So I'm sorry for this

RE: several junit test cases failed with RC3 running against db/2 v8

2003-07-29 Thread Mahler Thomas
Hi Akhil, Hi all, I just ran junit target for RC3 and found 8 test cases failed.. rest all passed. also there was one error in test-db creation... is this normal... We do not check against DB2 on a regular basis, so I assume it's normal that some things go out of sync. If certain DDL

RE: About jdo.dtd and jdo.jar

2003-07-28 Thread Mahler Thomas
Hi Antonio, Hi: The package jdo.jar already include a jdo.dtd. My question is: The file jdo.dtd located into jdo.jar is the same as the one provided with OJB distribution? Yes, it's the same file! I am currently using the jdo.dtd provided with OJB, but if this file is the same,

RE: Question about org.apache.ojb.jdori.sql

2003-07-28 Thread Mahler Thomas
Hi Antonio, -Original Message- From: Antonio Gallardo [mailto:[EMAIL PROTECTED] Sent: Monday, July 28, 2003 1:59 PM To: [EMAIL PROTECTED] Subject: Question about org.apache.ojb.jdori.sql Hi: In order to run the tutorial5 (JDO) we use the classes stored in:

RE: Object Database?

2003-07-24 Thread Mahler Thomas
Hi agaian Aaron, Thomas, Excellent response. I think I'll be spending some time mastering an OODBMS sometime soon. I have a few additional questions of clarification. 1) I have some ambient experience with ODMG and I've read an article on JDO :). Any sites/tutorials/articles you

RE: Cache manager, StackOverflowError

2003-07-24 Thread Mahler Thomas
Hi Chris, If you want to use the EmptyCacheImpl you have to make sure that you do not use cyclic data structures (e.g. A referencing B, B referencing A). loading cyclic structures with the empty cache results in stackoverflows. cheers, Thomas -Original Message- From: Chris Halverson

RE: huge fan of ojb, huge

2003-07-21 Thread Mahler Thomas
Hi Christopher, I worked through all of the gory details of getting ojb wired into jboss. i know have a dynamic persistence mechanism that writes data to any schema on the fly. i don't think cmp supports that! great job guys!!! thanks for the compliments. Can you share some more

RE: weaknesses of ODMG-API?

2003-07-21 Thread Mahler Thomas
Hi Thorsten, Hi! OJB and ODMG is new for me, but not OR-Mapping! I have questions about fundamental principles of the ODMG-concepts/the OJB-Implementation: BINDING OF TRANSACTIONS AND THREADS Can I use the ODMG-API within a J2EE-EJB-Container? Yes. You can integrate it via JTA

RE: About Current status of JDO

2003-07-18 Thread Mahler Thomas
Hi, The JDO implementation is fully functional. Please follow the steps mentioned in http://db.apache.org/ojb/tutorial4.html cheers, thomas -Original Message- From: Antonio Gallardo [mailto:[EMAIL PROTECTED] Sent: Friday, July 18, 2003 1:02 PM To: [EMAIL PROTECTED] Subject: About

RE: Is there an OJB taglib

2003-07-14 Thread Mahler Thomas
Hi Jason, didn't you see my response from yesterday: Hi again, Jacob just contacted me. He said that according to popular demand he wants to have a working version finished within a week. cheers, Thomas Thomas Mahler wrote: I have not heared any news from Jacob so far. I'll

RE: OJB 1.0 r3:Tutorial 1 : PersistentFieldClass and PersistentFieldDefaultImpl bug/Issue

2003-07-08 Thread Mahler Thomas
Hi, -Original Message- From: Ajitesh Das [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 08, 2003 11:12 AM To: [EMAIL PROTECTED] Subject: OJB 1.0 r3:Tutorial 1 : PersistentFieldClass and PersistentFieldDefaultImpl bug/Issue If I have understood correctly, this

OJB article in JavaMagazin 8.2003

2003-07-08 Thread Mahler Thomas
Hi all, there is an Article on OJB in the latest issue of the german JavaMagazin: http://www.entwickler.com/itr/online_artikel/psecom,id,392,nodeid,11.html The article is in german and there is also a short interview Sven had with me earlier this year. cheers, Thomas

AW: Pronunciation of JDO?

2003-07-02 Thread Mahler Thomas
thanks Charles, of course it must be OH-JAY-BEE ! YWIII -Ursprüngliche Nachricht- Von: Charles Anthony [mailto:[EMAIL PROTECTED] Gesendet: Mittwoch, 2. Juli 2003 08:43 An: 'OJB Users List' Betreff: RE: Pronunciation of JDO? ITYM OH-JAY-BEE as OH-JEE-BEE = OGB HTH TTFN Charles.

RE: 1:n mapping

2003-06-30 Thread Mahler Thomas
When i'm saying in my application broker.strore(General) OJB doesn't makes any records in PARTICLE table. Ahh! That's easy: You have to change the collection-descriptor as follows: collection-descriptor name=particles element-class-ref=Particle orderby=particleId sort=DESC

RE: 1:n mapping

2003-06-30 Thread Mahler Thomas
   * * [EMAIL PROTECTED] * *===*   -Original Message- From: Timofey Korolev [mailto:[EMAIL PROTECTED] Sent: Monday, June 30, 2003 9:11 AM To: OJB Users List Subject: RE: 1:n mapping On Mon, 2003-06-30 at 17:08, Mahler Thomas wrote

RE: What is the current version?

2003-06-30 Thread Mahler Thomas
Hi, RC4 is not yet released. But in CVS the version is already incremented to RC4. So RC4 is currently a synonym for CVS HEAD. cheers, thomas -Original Message- From: Brown, Melonie S. - Contractor [mailto:[EMAIL PROTECTED] Sent: Monday, June 30, 2003 5:58 PM To: '[EMAIL PROTECTED]'

RE: Just aknowledges

2003-06-30 Thread Mahler Thomas
Hi again Edson, Congrats for getting your project fly! And of course thanks for the warm words! I'm looking forward to reading your tutorial ;-) cheers, Thomas -Original Message- From: Edson Carlos Ericksson Richter [mailto:[EMAIL PROTECTED] Sent: Monday, June 30, 2003 6:14 PM To:

RE: OQL Query

2003-06-27 Thread Mahler Thomas
Hi Julia, I think it has to do with the extra quotes. You should have a look at the generated SQL statements (either by enabling log level DEBUG for SqlGenerator or by using the P6Spy tracer (as documented in the FAQ)) another option would be to use oql parameter binding. cheers, Thomas

RE: OQL Query

2003-06-27 Thread Mahler Thomas
to generate OJB queries. We did not modify the structure of the grammar itself. cheers, Thomas Julia. -Ursprüngliche Nachricht- Von: Mahler Thomas [mailto:[EMAIL PROTECTED] Gesendet: Freitag, 27. Juni 2003 15:18 An: 'OJB Users List' Betreff: RE: OQL Query Hi Julia, I think it has

RE: attribute element in field-desciptor

2003-06-26 Thread Mahler Thomas
hi Joerg, http://db.apache.org/ojb/repository.html#attribute for reference. You can use this tag for user defined attrbites that you want to add to your field-, reference, collection and class-decsriptors. This allows you to keep special information within the DescriptorRepository. For instance

RE: extents and mapping inheritence

2003-06-24 Thread Mahler Thomas
Hi again Scott I was looking at the DescriptorRepository class and I feel I could easily patch it to walk the inheritance tree for invisible mappings via inheritance. I will patch it if this functionality desired. Sure, just give it a try. We are happy to review the patch. cheers,

RE: extents and mapping inheritence

2003-06-24 Thread Mahler Thomas
working against CVS HEAD is prefered as it make the committers life easier :-) -Original Message- From: Weaver, Scott [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 24, 2003 5:24 PM To: 'OJB Users List' Subject: RE: extents and mapping inheritence Will this patch correctly into

RE: Proxy

2003-06-24 Thread Mahler Thomas
Hi, Are you sure proxy is working ??? There are tons of testcases proving that it works! I'm working with OJB 1.0 rc3. I've got all my simple collections. Not arrays, not manageable collections only Vectors. Everytime I turned on the proxy in my repository.xml, always the same

RE: Troubles with Websphere / OJB / Oracle application

2003-06-18 Thread Mahler Thomas
Hi jeroen, are you sure you properly close all broker instances after usage? If you don't close broker instances after usage they are not made available to the pool and thus a shortage of available db connections is likely to happen! cheers, Thomas -Original Message- From: J Pielage

RE: Any Oracle OJB Users in Production? -- Thomas or someone,Comments on Datatype?

2003-06-18 Thread Mahler Thomas
I agree! http://db.apache.org/ojb/platforms.html gives some more deatils about the OJB internal tables. I changed the two LONGVARBINARY columns for OJB_DMAP_ENTRY already in cvs. So there should be less problems with oracle + junit tests in the future. cheers, Thomas -Original Message-

RE: Updating Objects

2003-06-18 Thread Mahler Thomas
Hi Eric, Is it appropriate to update a persisted object by creating an new object with same id as the persisted object and then persisting the new object? I don't think this is best practise. But there may be reasons to such things... At least from an OJB point of view I see no

RE: OJB XDoclet module

2003-06-17 Thread Mahler Thomas
-Original Message- From: Dougall Squair [mailto:[EMAIL PROTECTED] Sent: Tuesday, June 17, 2003 10:34 AM To: 'OJB Users List' Subject: OJB XDoclet module Hi, Will the sourece code for the XDoclet OJB module be included within standard XDoclet distribution?

RE: Questions re. mapping of associations...

2003-06-17 Thread Mahler Thomas
hi again, snip ... I was thinking along these lines myself. But I was afraid that I would also have to change my field-declarations to 'DList' instead of 'List'. Glad that I don't have to :-) Still have to find a way make the proper factory-object available in all places where it

RE: [Newbie] persistence layer

2003-06-16 Thread Mahler Thomas
Hi Ilia, The Interface you describe comes very close to the OJB Interface PersistenceBroker: http://db.apache.org/ojb/api/org/apache/ojb/broker/PersistenceBroker.html As The Beer4all example is meant as a simple Struts + OJB tutorial there is no need to introduce an additional service interface.

RE: MetadataException

2003-06-13 Thread Mahler Thomas
Hi Mete, Set the loglevel for XmlRepositoryHandler to DEBUG in OJB.properties. This will trace the complete parsing of the repository and will stop at the problematic position. A second option is to use an XML editory like XMLSpy and validate the repository.xml against the DTD. This will help

RE: Problem with junit testing on Oracle 8.1.7

2003-06-13 Thread Mahler Thomas
Just place the drivers jar file in the OJB lib directory. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Friday, June 13, 2003 12:13 AM To: OJB Users List Subject: Re: Problem with junit testing on Oracle 8.1.7 It looks like the JVM that is executing

RE: ODMG locking

2003-06-13 Thread Mahler Thomas
use UPGRADE to ugrade from an existing READ lock to a WRITE-lock. there is no semantic difference between UPGRADE and WRITE locks. -Original Message- From: Henrik Berg [mailto:[EMAIL PROTECTED] Sent: Friday, June 13, 2003 12:55 PM To: [EMAIL PROTECTED] Subject: ODMG locking

RE: Problem of dynamic proxy?

2003-06-12 Thread Mahler Thomas
Hi, -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, June 12, 2003 8:51 AM To: OJB Users List Subject: Problem of dynamic proxy? Hi! I declare a class-descriptor of A. Its proxy property is set dynamic. I try to load it from DB by oql

RE: How to use special option to insert new record.

2003-06-12 Thread Mahler Thomas
Hi Shivaken, There is no way to do this with QueryByCriteria queries. You could use QueryBySQL to use use your own handcoded SQL. an additional option would be to implement your own SqlGenerator Implementation that use your special SQL code. But this will be more work. cheers, thomas

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