READ Lock and Commit ?

All, Should we all times use the Read lock when we manipulate a jdo for reading? If yes, should we have to commit in order to release all locks or should we abort the current transaction? I thought it was important to systematically use the lock with all mode (even READ) in order to

non-decomposed mapping and deletions in PB

Hello All, i have the following problem (maybe a configuration problem but i don't know where). Tables: user (id,username) role (id,rolename) userrole (userid,roleid) i use non-decomposed mapping with the PersistenceBroker API and ManageableArrayList. broker.beginTransaction();

Upgrade form 0.9.5 to 1.0rc4 : foreign key problem

Hi, I upgraded from ojb0.9.5 to 1.0 rc4. Some of my unit tests fail because sometimes foreign key values (1 - N relationship) are not stored : Example : - // Create productgroup ProductGroup pg = new ProductGroupBean();

RE: Problem with DB2 on z/OS

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)

Hi Gus, Yes, I hope to get my hands on the open JDO issues very soon! Thomas -Original Message- From: Gus Heck [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 02, 2003 7:59 PM To: OJB Users List Subject: Re: JDO Bug (status please) I just got bit by this, despite the fact I

RE: Upgrade form 0.9.5 to 1.0rc4 : foreign key problem

Hi, I debugged the OJB source code, and indeed the foreign key value itself will be set to null if the related object is not filled in. (PersistenceBrokerImpl - assertFkAssignment) So my example works when the related object is filled in : ar.setProductGroup(pg) Is there a workaround for this ? I

Re: Problems using Tomcat + OJB

Thanks for everyone, I just moved the files to WEB-INF/classes and worked. Unfortunatelly, in the OJB.properties, I had to write the fully static directory to the repository file running at Tomcat. repositoryFile=../webapps/maritima/WEB-INF/classes/repository.xml Is that right? There is

Re: OJB and MySQL4 in server

try using p6spy to check your access and queries into the database, as db versions are diferent. www.p6spy.com Anish wrote: Hi all, i have an application which uses mysql and OJB. in the local machine it runs. but when i uploaded to the server it doesnt. and problem is that i cant view the

mapping M:N relation WITH ATTRIBUTES

Hi all, I would like to map an M:N relation WITH ATTRIBUTES but seem to be unable to do it with OJB... By WITH ATTRIBUTES I mean that there is typically some more fields in the indirection table than just foreign keys. Do I have to use 1:N N:1 mapping instead? A dummy example: Table

Re: Problems using Tomcat + OJB

Rogerio Tambellini dijo: Thanks for everyone, I just moved the files to WEB-INF/classes and worked. Unfortunatelly, in the OJB.properties, I had to write the fully static directory to the repository file running at Tomcat. repositoryFile=../webapps/maritima/WEB-INF/classes/repository.xml I

Re: deadlock in transaction.lock

Hi, - Original Message - From: Armin Waibel [EMAIL PROTECTED] To: OJB Users List [EMAIL PROTECTED] Sent: Tuesday, December 02, 2003 8:41 PM Subject: Re: deadlock in transaction.lock Hi, Jair da Silva Ferreira Júnior wrote: Hi, I am using ojb1.0_rc4, ODMG api with OJB

Re: mapping M:N relation WITH ATTRIBUTES

Hi Reda. I´m working on this problem through the implementation of specific MtoNImplementors. I dunno when I´ll be able to finish this.. but this is supposed to solve problems like yours. On Wed, 3 Dec 2003 13:22:54 +0100, Reda Benzair [EMAIL PROTECTED] escreveu: De: Reda Benzair [EMAIL

Re: mapping M:N relation WITH ATTRIBUTES

Where would the Comment field be stored in the Java objects ? If you have a separate Java class for the connection between Employees and Companies which contains the Comment field, then you already have manual decomposition (see

RE: Upgrade form 0.9.5 to 1.0rc4 : foreign key problem

Hi Frank, I upgraded from ojb0.9.5 to 1.0 rc4. Some of my unit tests fail because sometimes foreign key values (1 - N relationship) are not stored : Example : - // Create productgroup ProductGroup pg = new ProductGroupBean();

OJB.properties/repository.xml in a jar file? Was Re: Problems using Tomcat + OJB

We are trying to deploy an application as a single jar file. But we cant seem to get the OJB subsystem to load its files from inside the jar. any suggestions? Jason Pyeron On Wed, 3 Dec 2003, Antonio Gallardo wrote: Rogerio Tambellini dijo: Thanks for everyone, I just moved the files to

Per-jcdAlias OJB cache?

Greetings OJB-users, I am currently looking into a viable solution for the following problem: I have two different connection-descriptors (and thus two different jcdAliases, let's call them ALIAS1 and ALIAS2) pointing to the same Oracle database but logged in with two different users (let's

Re: Per-jcdAlias OJB cache?

Hi Martin, with latest version from CVS (upcoming next release) it is possible to define the ObjectCache per class/per jdbc-connection (and a default cache in OJB.properties). More info you can find in the ObjectCache documentation of CVS version. Build docs with bin\build.bat htmldoc or

Re: Problems using sequence-manger for MsSqlServer

It still not working... :-( Do I have to implement a store procedure and create OJB tables like OJB_NEXTVAL_SEQ? My repository.xml: sequence-manager className=org.apache.ojb.broker.util.sequence.SequenceManagerHighLowImpl attribute attribute-name=grabSize attribute-value=20/

Re: Per-jcdAlias OJB cache?

Hello Armin, Armin Waibel wrote: with latest version from CVS (upcoming next release) it is possible to define the ObjectCache per class/per jdbc-connection (and a default cache in OJB.properties). Excellent; thanks for the quick info. I was about to do a checkout from CVS anyway to get the

Re: OJB.properties/repository.xml in a jar file? Was Re: Problems using Tomcat + OJB

Jason Pyeron wrote: We are trying to deploy an application as a single jar file. But we cant seem to get the OJB subsystem to load its files from inside the jar. any suggestions? I suggest you provide the list with error messages and details about what you have tried that didn't work,

Re: prefetch and autoRetreive

hi john, do you have an up-to-date version of this patch you could post on the list ? jakob John wrote: I figured that would fix it, but I also figured that was in there for a reason and I didn't want to change something I didn't completely understand. That's mainly why I asked why it had to

Joined table query question

Greetings all, I am attempting to get a simple inheritance structure working under OJB 1.0rc4 running under Jboss with postgres. Here's the background: Repository.xml fragment: class-descriptor class=com.steelpagoda.fist.model.PersonImpl table=people !--

performance decrease

Hi everybody, i've a problem of performance. OJB lasts more and more time to store objects in my DataBase. I thougth it was due to objects but it steadily increases. Is it a problem of memory (with java) or is it due to OJB ?

Problems with OQLQuery

Hi all, Each time when create a OQL Query with OQLQuery query = odmg.newOQLQuery(); I get the following error message: java.lang.NoClassDefFoundError: antlr/TokenStreamException at org.apache.ojb.odmg.OJB.newOQLQuery(Unknown Source) at

Re: Problems using sequence-manger for MsSqlServer

Hi, I'm not able to create tables (OJB tables) and modify the column names, so I cannot use SequenceManagerHighLowImpl, then I changed to SequenceManagerNextValImpl hopping it would work. Unfortunatlly, it's not working, but I discovery 1 problem, and I'd like to know how it would be handled.

1:n associations - navigate both ways

Hi folks, I am trying to implement a 1:n association that I can navigate both ways. I am already doing the 1 --- N navigation normaly. But when I try do the N --- 1 navigation like being a 1:1 my eclipse is crashing javaw... How can I provide both way navigation to my 1:N associations ?

[Fwd: How collection data stored in db]

Original Message Subject: How collection data stored in db Date: Tue, 2 Dec 2003 20:33:22 +0100 (MET) From: Damir Dulitz [EMAIL PROTECTED] To: [EMAIL PROTECTED] In the ojb tutorial (http://db.apache.org/ojb/tutorial3.html) there is example for a 1:n mapping. But how and where

RE: Upgrade form 0.9.5 to 1.0rc4 : foreign key problem

Hey Wally, So if I call broker.resolveAllReferences(obj); in my generic store method, I should be able to remove my hack that stops OJB from setting my foreign keys to null? I guess this may slow things down a little but I prefer to get rid of my custom OJB code. Graham -Original

RE: 1:n associations - navigate both ways

Hi, I suspect that you have refresh=true creating an infinite loop. Try removing at least one refresh attribute. Wally -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Tuesday, December 02, 2003 7:50 AM To: [EMAIL PROTECTED] Subject: 1:n associations -

AW: Problems with OQLQuery

That was it! Thanks to your help! Rolf -Ursprüngliche Nachricht- Von: Jakob Braeuchi [mailto:[EMAIL PROTECTED] Gesendet: Mittwoch, 3. Dezember 2003 21:17 An: OJB Users List Betreff: Re: Problems with OQLQuery hi rolf, do you have antl.jar or antlr.debug.jar in your classpath ? jakob

Re: Query prefetching non-decomposed M:N relationships is unimplemented?

hi andy, please try adding the following method to CollectionDescriptor public FieldDescriptor[] getForeignKeyFieldDescriptors(ClassDescriptor aCld) { if (isMtoNRelation()) { // BRJ: answer pkFields of referenced Class return aCld.getPkFields(); }

Re: deadlock in transaction.lock

Hi, The deadlock occurs when locking the objects. More specifically, in the first write-lock of the object which happens to persists it. These are my locking properties in OJB.properties: LockManagerClass=org.apache.ojb.odmg.locking.LockManagerDefaultImpl

DefaultLogger/Log4J

I'm using Log4J instead of PoorMansLogging and could not figure out how to remove the following debug from my logs 2003-12-03 12:02:11,124 DEBUG [Finalizer] Host: IP: Session: PINID: UID: DEFAULT - [EMAIL PROTECTED] CACHE STATISTICS Count of cached objects=0 lookups=0 failures=0

ODMG DList Removal left-overs

Hi all, I'm trying to solve a small problem with the ODMG DList - we have created a class called TypedSet inherited from the OJB DListImpl. That's all fine and good, except when we have cleaned up all our objects there are a large number of entries still in the OJB_DLIST and OJB_DLIST_ENTRIES