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Problem on JPA Merge Entity.

Hello, I have a problem with the EntityManager.merge() function. I ... { @PersistenceContext private EntityManager entityManager; public void saveErgoClass(ERGOClass ergoClass ... EntryAlreadyExistException, DaoException { entityManager.persist(ergoClass); } public void

Filename.odb$ Persisting Issue

.createEntityManagerFactory("$objectdb/db/payrollDB - Copy0.odb"); public  static EntityManager departmentDB = emf.createEntityManager(); public  static EntityManager employeeDB = emf.createEntityManager(); public  static EntityManager paygradeDB = emf.createEntityManager

Mismatch client-server protocol prefix

connection and sockets (i.e. same EntityManager) by two concurrent threads. ObjectDB synchronizes use of EntityManager by different threads ... implementation. Maybe a socket from a closed EntityManager is still used

openejb jpa jaas module

.UserInfo; import com.bayner.jpa.UserPrincipal; import javax.persistence.EntityManager; import javax ... EntityManagerFactory entityManagerFactory; private EntityManager entityManager ... ")); entityManager = entityManagerFactory.createEntityManager

Conflicting modifiers .... (javax.persistence.Id, javax.persistence.ManyToOne)

.persistence.EntityManager; import javax.persistence.FlushModeType; import javax.persistence.Id ... CompoundKeyMapItem x") }) public class Container { public static Container getInstance(EntityManager ... (Integer numberToGen, EntityManager em) throws TestException { if (lastInstanceInMap == null

Visibility of changes in Transaction is not visible to a JPA QL Query

static Singleton getInstance(EntityManager em) {   Singleton c = em.find(Singleton.class, "1 ... void generateItems(EntityManager em, int howMany) {   if (lastInstance == null) {   ... ;   } } public long howManyItemsExist(EntityManager em) {   TypedQuery<Long> q

Entity listener - event instead of object

" version of object stored in database. I can't find the nice way to use EntityManager in EntityListener ... regarding the technical question. Do you need to obtain an EntityManagerEntityManager. support Support I know about this feature

Query results are not up to date for entities, not primitives

the EntityManager may break its synchronization with the database. For example, the EntityManager may not ... . Therefore, it is a good practice to use a separate EntityManager for UPDATE queries." You are using a new EntityManager

[ObjectDB 2.2.6_02] Unexpected exception (Error 990) at com.objectdb.o.OBC.aJ(

.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence ... "); }   public EntityManager ... ) { EntityManager em = getEntityManager(); try { return em.find(MomentEntity.class, id

Once served to JSF page via @EJB query bean, many list fields are null (but same query ok after fresh persist in @PostConstruct)

EntityManager em;     public List<Element> findElements() {    ... EntityManager (the default as explained below), so when the findElements method ... ="code">findElements, etc. 2. Switch to extended scope EntityManager