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forum_thread

Too many persistable types (>10) - exceeds evaluation limit

Hi, I am trying to evaluate and compare ObjectDB to other persistence solution for a project. At the moment I am trying to read in data written previously with JDO. As I am testing many frameworks and want to automate as much of the testing as possible I am using two persistence units for this and get a JdoDataStoreException: Too many persistable types (>10) - exceeds evaluation limit... Even though I define only 10 entites in the persistenceFile. Has this something to do with the fact that I have to persistence units? #1 2017-11-15 13:03 Hi, I am trying to evaluate and compare ObjectDB to other persistence solution for a project. At the mome ...

 
issue

EOFException

Not sure if you'll be able to help with this but I've had an application get into a state where it cannot access anything from the database - queries fail with the following exception: ... rbccm.felix.objectdb.workflow.ObjectDbGraphContainer.find(Unknown Source) at ...

 
forum_thread

Duplicate Entity class names causes Exception in Query

I have two Entities which have the same class name but reside in different packages, only one of them is mentioned in the persistence.xml. I a NamedQuery I use the unqualified class name of one of these entities. If I execute that query I get an exception;   ... em ) { Singleton c = em. find ( Singleton. class , "1" ) ; if ( c ...

 
forum_thread

Lazy Init / Eager / Join Fetch collection strategy ? What to choose ?

Hello, I'm doing some tests to choose the best collection fetch strategy. I have entities with many lazy collections and i don't want to load them all. In JPA / Hibernate world it exist some tests demonstrating how to choose the best strategy. For example : http://zeroturnaround.com/rebellabs/how-to-use-jpa-correctly-to-avoid-complaints-of-a-slow-application/ In this article,join fetch seems to be the right choice. What about ObjectDb ? The implementation is totally different. ... fully supported by ObjectDB but not documented (you can find more details in the JDO specification). This ability became ...

 
forum_thread

Should I use ObjectDB and JDO?

My application is not meeting required performance because JavaDB appears to be my bottleneck.  I require a faster DB.  Surveying the Internet lead me to believe that ObjectDB might be just what I am looking for (to achieve MUCH faster database access).  But, I have a few concerns.   ... or is it an exact copy of some JDO 2.x API that I could find at the official JDO API location:  ...

 
issue

java.lang.ClassCastException: com.objectdb.o.SCU cannot be cast to com.objectdb.o.PRU

Error in production urgent [2017-05-19 13:34:09 #14 server] ... further, especially if it happens again. Of course, if you find a way to reproduce index corruption it may be of a great help. ...

 
forum_thread

Object Relations Error after Schema Change

Hi we have a problem with relations in OBjectDB 2.4.6, the problem occured after we changed relations in few clases. Specificaly we deleted relation pointing to one class and created new relation to third class. If we restart both ObjectDB and Jboss everything works fine for a short period. Attached is a ObjectDB error message. Kind regards. ... privately using a support ticket), we may be able to find the problem and suggest a fix. ObjectDB Support ...

 
forum_thread

Integration

Hi,   Is there a way to integrate ObjectDB with Spring Framework to add the benefits of Transaction Management and DAO Support?   Regards,... (something is still wrong but i will delve deeper when i find time.) next on the agenda is effectively persisting stuff etc see ...

 
release

2.3.0

... Fixed a bug in managing a new entity after an attempt to find it in the database. Fixed a bug in using LIKE in AND/OR in ...

 
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 { ... We try everything to create an example. But maybe you can find more information in the stack-trace and can help to create (fast) a ...