Fast Object Database for Java - with JPA/JDO support

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EntityManager to closed

Hi I understand we should close the entitymanager after each use, and close the factory ... . I am just running some test cases and opened up 100 entitymanager via factory.createEntityManager ... closing EntityManager and EntityManagerFactory instances is mainly wasted resources on the client side. support Support

Issue with orphanRemoval and multiple EntityManagers

with orphanRemoval set to true. I use a new EntityManager for each transaction (which normally happens in ... , the database contains 3 child entities. If I use the same EntityManager for both transactions ..."));         EntityManager em = emf.createEntityManager();         em

DB persist operation results are not available for another Thread/EntityManager immdiately

Hello, we have following situation: The EntityManagerFactory is always opened and won't be closed. Thread A with its own EntityManager persists entities and commits the entities successfully. Thread B runs afterwards also with its own EntityManager and tries to load the persisted entities by

JPA - ExceptionInInitializerError when creating EntityManager

.EntityManagerFactoryImpl@ffa7e1 EntityManager emTemp = emf.createEntityManager(); TypedQueryEntityManager em = emf.createEntityManager(); try { Object

EntityManager getMetamodel() causes crash

I am trying to track down some obscure errors with multi-threading. This involved looking at the EntityManager Metamodel but this caused an ObjectDB exception. So I reverted to your example code in ... " EntityManager em = emf.createEntityManager(); em.getTransaction().begin

EntityManager.refresh takes a long time

EntityManager.refresh takes a long time for entity object Person in this code:     logger.log(Level.INFO, "begin select for person " + new Date().toString());                TypedQueryEntitymanager updates only objects in his context

Eclipse4 RCP - No Persistence provider for EntityManager

.PersistenceException: No Persistence provider for EntityManager I'm using the latest ObjectDB 2.6.2.b03 ... an EntityManagerFactory to building an EntityManager) it may be because resources that are needed by

Executing JUnit "all tests" throws "Object ... belongs to another EntityManager" Exception

#7' belongs to another EntityManager [Symbol:7] When I change the order in which the test runs (by

EntityManager.merge gives EntityNotFoundException

Just started using objectdb (2.3.4). Calling EntityManager.merge for a new (non-managed) object gives EntityNotFoundException. I am perplexed by this. See attached test case. Thanks for your assistance. Full error output is: Exception in thread "main" [ObjectDB 2.3.4] javax.persistence

javax.persistence.PersistenceException: No Persistence provider for EntityManager named in Karaf 4.0.7 and OSGi DS test

.persistence.PersistenceException: No Persistence provider for EntityManager named objectdb://localhost:6136

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