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forum_thread

Different behavior with persist() and queried instances?

Hi, We have a simple class that by itself contains (among others) a property pointing to a collection: class Bla {  @OneToMany(cascade = CascadeType.ALL) private List<AttributeEntity> metaAttributes = new ArrayList<AttributeEntity>(); } #1 2011-05-03 08:40 Hi, We have a simple class that by itself contains (among others) a property pointing to a collection: ...

 
forum_thread

An ArrayIndexOutOfBoundsException with nested entities and enhanced entities

We have a new issue like the issue in the forum task http://www.objectdb.com/database/forum/1075. This issue is very important for us, because we want to create a release soon. ObjectDB version: 2.6.8_06 All our entities are enhanced. There are nested entities in following hierarchy: @Entity @Access (AccessType.FIELD) public abstract class ModifierImpl extends DataTypeImpl implements Modifier { #1 2016-08-01 15:17 We have a new issue like the issue in the forum task http://www.objectdb.com/database/forum/1075. This is ...

 
forum_thread

Verify Error with Java 1.7

ObjectDB enhanced classes fail when compiled to Java 1.7 [ObjectDB 2.2.9_08 Enhancer] 28 persistable types have been enhanced: ... com.vaisala.jx.db.gdm.model.SourceType stack trace from jUnit test ... I now get the following exception in my client trying to connect to the server: java.lang.ClassFormatError: StackMapTable format ...

 
forum_thread

How to have a distribuited GWT application with ObjectDB and Spring?

Hello to everyone! #1 2013-05-22 12:53 Hello to everyone! I've been developing a GwT application as a project for my computer science facult ...

 
forum_thread

One transaction or two?

If I have a large number of objects to delete and then add to a PersistenceManager is it more efficient to do everything in one transaction or two? Currently my code looks like this: #1 2011-08-24 21:39 If I have a large number of objects to delete and then add to a PersistenceManager is it more efficient to do eve ...

 
forum_thread

Degrading performance overtime

hi, We have an application that uses embedded odb database. We have configured odb to start at 50meg chunks and grow at 50 megs a time. as the files become larger between 1 and 2 gigs we start to see considerable degrade in performance caused internal objectdb locking: #1 2012-11-29 14:58 hi, We have an application that uses embedded odb database. We have configured odb to start at 50meg chun ...

 
forum_thread

mapping file is not being loaded

Hi, I am evaluating ObjectDB by using it with an in-house developed library in order to prototype its capabilities / performance. I am having a problem in that the in-house library in question reads a simple configuration file to determine available persistence units, and then bootstraps them using the JPA Persistance.createEntityManagerFactory() method and passing in the persistence unit name (again, obtained from the configuration file ). #1 2012-06-22 15:00 Hi, I am evaluating ObjectDB by using it with an in-house developed library in order to prototype its capabilitie ...

 
issue

Server out of memory exceptions

I've started to get memory exceptions on objectdb instances running as a server. The objectdb log reports this as: Bug Version: 2.2.8 Priority: Normal Status: Fixed Replies: 22 Type:  Bug ...

 
forum_thread

Is there a function of "drop table" or "delete from table"?

Besides the em.remove() one by one, is there a function of "drop table" or "delete from table"? TIA #1 2011-08-16 20:21 Besides the em.remove() one by one, is there a function of "drop table" or "delete from table"? TIA ...

 
forum_thread

Listing large number of complicated objects with paging.

Hi, For last few hours I was working on a problem with bad performance and memory problems with such a simple query: select prod from Product prod order by prod.id ASC Right now I have 55541 'Product' (attached to this post) entities in database and I'm trying to speed listing them with paging. The problem is, that running code that looks like this: ... ODB is running as server and I'm using loopback to connect to this server. So, how else can I speed up this type of query? ...