8 | Updating Entities().begin(); this.rate = rate; Main.paygradeDB.getTransaction().commit(); return true ... -> System.out.println(p.getRate())); Main.paygradeDB.getTransaction().begin(); modifyTo.executeUpdate ... .getTransaction().begin(); for(Employee e : Query.employeesByPaygrade(p)) //Returns only Employees |
8 | Persist error @ManyToMany how to define correct entities relationships checkActive(){ if(!em.getTransaction().isActive()) em.getTransaction().begin ... (){ if(!em.getTransaction().isActive()) em.getTransaction().begin ... ().isActive()) em.getTransaction().begin(); } } } lo Hoel If you use merge |
8 | Schema Update: class hierarchy change.createEntityManager(); // Persist an entity em.getTransaction().begin(); MyEntity entity = new ... .persist(entity); em.getTransaction().commit(); em.getTransaction().begin(); MyEntity ... (); //don't create a new object! // // Persist an entity // em.getTransaction().begin |
8 | Optimistic locking: prevent version increment on entity collection attribute is the EntityManager em.getTransaction().begin(); Document doc = new Document ... "); EntityManager em = emf.createEntityManager(); em.getTransaction().begin ... .createEntityManager(); em.getTransaction().begin(); Document doc = new Document(); // Note |
8 | Internal exception when updating date filed (TemporalType.DATE).getTransaction().begin(); TypedQuery<Person> personQuery = entityManager ... ) { try { entityManager.getTransaction().begin(); for (int index ... ) { entityManager.getTransaction().begin(); for (int index = 0; index < 10000; index |
8 | Remove a modified entity cause an optimistic lock exception(); em.getTransaction().begin(); em.persist(new MyEntity()); em.getTransaction ... .getTransaction().begin(); MyEntity e = em.find(MyEntity.class, 1); e.increaseValue ... "); EntityManager em = emf.createEntityManager(); em.setFlushMode(FlushModeType.AUTO); em.getTransaction().begin |
1 | stress test -> com.objectdb.o.InternalException: null), then the load test begins. It seems to be related on what load I put on the server through jMeter ... em1 = emf.createEntityManager(); em1.getTransaction().begin(); em1.persist(new ... (); em2.getTransaction().begin(); em2.persist(new TestEntity()); em2 |
1 | New entity objects are duplicated on merge cascading(); em.getTransaction().begin(); em.persist(new Book()); em.getTransaction().commit ... (); em.getTransaction().begin(); book.chapters = Arrays.asList(new Chapter()); em.merge ... ); EntityManager em = emf.createEntityManager(); em.getTransaction().begin |
1 | Remove of an entry from a @OneToMany collection is not possible if the enhancer is disabled parentEntity = new ParentEntity(); entityManager.getTransaction().begin(); entityManager.persist(parentEntity); entityManager.getTransaction().commit(); entityManager.getTransaction().begin ... "); EntityManager em = emf.createEntityManager(); em.getTransaction().begin |
1 | Unexpected exception (Error 990) com.objectdb.o.InternalException with an embeddable: em.getTransaction().begin(); em.persist(new MyEntity()); em ... (); // Update the embeddable: em.getTransaction().begin ... .getTransaction().begin(); em.persist(new MyEntity()); em.getTransaction().commit |
