13 | evictAll() behavior.currentTransaction().begin(); System.out.println("Cache size after commit= " + pm.getManagedObjects().size ... --testDbProvisioning Cache size before COMMIT/BEGIN= 1 transient transient Cache size after COMMIT/BEGIN= 2630 ... before COMMIT/BEGIN = 280 persistent-new hollow/persistent-nontransactional Cache size after COMMIT |
13 | Selective merge/cascade of detatched entity to: EntityManager em = emf.getEntityManager(); em.getTransaction().begin(); Company company = new Company("new ... : EntityManager em = emf.getEntityManager(); em.getTransaction().begin(); Company company = new Company("new"); em.persist(company); em.getTransaction().commit(); em.getTransaction.begin(); for (Salesman s |
12 | Performance in large transactions(); transaction.begin (); // the "problem" Query Entity2 x = //query (getSingleResult): "select e from ... ); EntityTransaction transaction = entityManager.getTransaction(); transaction.begin (); for (i = 0; i <100 ... .getTransaction().begin(); // SLOW long startTime = System.currentTimeMillis(); MyEntity |
2 | javax.persistence.EntityManager. The EntityTransaction instance may be used serially to begin and commit multiple transactions. Returns |
2 | getTransaction()Method javax.persistence.EntityManager EntityTransaction getTransaction() Return the resource-level EntityTransaction object. The EntityTransaction instance may be used serially to begin and commit multiple transactions. Returns: EntityTransaction instance Throws: IllegalStateException - if invoked on a JTA entity manager Since: JPA 1.0 |
0 | getObjectId(pc) of the beginning of the transaction. Since: JDO 2.0 See Also: PersistenceManager.getObjectId(Object pc |
0 | javax.jdo.spi.StateInterrogation of the beginning of the transaction. Since: JDO 2.0 See Also: PersistenceManager.getObjectId(Object pc |
0 | javax.jdo.PersistenceManager, then this method returns the identity as of the beginning of the transaction. The value returned by |
0 | javax.jdo.spi.StateManager, this method returns the identity as of the beginning of the transaction. Parameters: pc - the calling |
0 | javax.jdo.JDOHelper of the ObjectId of the parameter instance as of the beginning of the transaction. Since: JDO 1.0 |
