About EntityManager

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Forum
2

Left join fetch behaviour doesn't retrieve children?

.CascadeType; import javax.persistence.Entity; import javax.persistence.EntityManager; import javax ... ");         EntityManager em = null ;         // Merge parent1         em = emf.createEntityManager ... the data, if done before closing the EntityManager) but not that the relationship is activated. The unit
Forum
2

Memory Leak?

EntityManager instances (PMImpl). The other instances are probably hold by the EntityManager instances, so the question is why the EntityManager instances are not released. The code that you posted ... I created an EntityManager (line 115). My bad. After I fixed it, no more memory explosion. I
Issue
2

new objects not available in mappedBy associations

after the transaction is committed (or after the update and before commit, if your EntityManager is set to use ... EntityManager? ps: setting FlushModeType.AUTO in the EntityManager resulted in a huge exception ... EntityManager? The argument to refresh is the object that contains the inverse field. This way
Forum
2

NoSuchFieldError: __odbTracker on NetBeans 7.3 + JBoss 7.1.1

); entityManager.persist(city); entityManager.persist(person); The exception: java.lang ... Person(); person.setName(name); entityManager.persist(person ... .setCity(city); entityManager.persist(city); entityManager.persist
Forum
2

NullPointerException while setting a new property value

(Collection entityCollection) { final EntityManager em ... should have its own EntityManager and entities. According to the JPA specification: "An entity manager ... manner." Actually there is an attempt to provide thread safe EntityManager and persistence context
Forum
2

500Mb ObjectDb database opening issue

.createEntityManagerFactory( "objectdb:" + aFilename ); m_EntityManager = m_EntityMgrFactory.createEntityManager ... .createEntityManagerFactory(path); EntityManager em = emf.createEntityManager ... ); m_EntityManager = m_EntityMgrFactory.createEntityManager(); m_EntityManager.close
Issue
2

spuriously objectdb objects have null references

entityManager per thread and have a central point where we encapsulated all the needed entitymanager ... Object(); public static void begin(EntityManager threadEntityManager){ synchronized(lockBegin ... >(); ...       When an entity object is detached (e.g. when the EntityManager is closed), ObjectDB
Issue
2

stress test -> com.objectdb.o.InternalException: null

that closed the EntityManager and moved its connection to the pool. Then to ObjectDB (on the just closed EntityManager) that had to commit changes using the connection (which has already been moved ... ");                 EntityManager em1 = emf.createEntityManager();         em1.getTransaction().begin();         em1.persist
Forum
2

Transaction isolation support?

when the fetch start? Martin   Every EntityManager manages its own memory objects (which represent database objects). Therefore, if an entity object is retrieved by one EntityManager and then updated in the database by another EntityManager, the first EntityManager may still have an old version of that entity
Forum
2

Type xxx is not found (error 301)

JPA application by obtaining PersistenceManager from your EntityManager:     em.unwrap ... ), so, what would the object be? oddly, I don't have an unwrap() method on my EntityManager?? also, I don't have a query (String, Class) method on my EntityManager > 3) use jdo from jpa - is there a performance penalty