Internal Website Search

.createEntityManagerFactory( "objectdb:" + aFilename ); m_EntityManager = m_EntityMgrFactory.createEntityManager(); m_EntityManager.setFlushMode( FlushModeType.COMMIT ); if ( m_EntityManager.isOpen() ) { m_EntityManager.getTransaction().begin(); for ( Pa3DataKey dataKey : aDataKeys

.Embeddable; import javax.persistence.Entity; import javax.persistence.EntityManager; import javax ... ;   private static EntityManager entityManager;     public static void main(String ... ");     entityManager = entityManagerFactory.createEntityManager();   

> I am guessing this must be an issue with the EntityManager's life cycle but cannot figure out what. I am using Guice injection and Guice persist and should get one EntityManager per request ... ="pre-java"> public void test() {     // em is the EntityManager    

> EntityManager em = emf.getEntityManager(); em.getTransaction().begin ... way to achieve this? It might look something like: EntityManager em ... ("objectdb:/var/tmp/points.tmp;drop"); EntityManager e = emf.createEntityManager(); e.getTransaction

.createEntityManagerFactory("sscce.odb");     EntityManager entityManager = entityManagerFactory ... ;   entities.add(entity);       entityManager.getTransaction().begin();       entityManager.persist(entity);     

.Stateless; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext ... connection: @PersistenceContext(unitName = "guest-pu") private EntityManager em;    ... java.util.List; import javax.ejb.Stateless; import javax.persistence.EntityManager; import javax

/jpa/EntityManager" title="Interface in javax.persistence">EntityManager methods

and after that a ToleranceDefinition entity is removed from database by entitymanager.remove(obj). Directly ... / UPDATE database queries with EntityManager's operations is known as ... the EntityManager mechanism and therefore are very risky as the 

.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence ... /db/test.tmp;drop");   EntityManager entityManager = emf.createEntityManager();   ParentEntity parentEntity = new ParentEntity();   entityManager.getTransaction().begin();  

is accessed in one thread while the EntityManager is manipulated concurrently in another thread (e.g. transaction is committed or the EntityManager is closed). Is it possible that an EntityManager and/or its managed