Example usage for javax.persistence EntityTransaction commit

Introduction

In this page you can find the example usage for javax.persistence EntityTransaction commit.

Prototype

public void commit();

Source Link

Document

Commit the current resource transaction, writing any unflushed changes to the database.

Usage

From source file:de.iai.ilcd.model.dao.AbstractDao.java

/**
 * Default remove: bring back to persistence context if required and delete
 * /*w ww . j ava  2s  . c  o m*/
 * @param obj
 *            object to remove
 * @return remove object
 * @throws Exception
 *             on errors (transaction is being rolled back)
 */
public T remove(T obj) throws Exception {
    if (obj == null) {
        return null;
    }
    EntityManager em = PersistenceUtil.getEntityManager();
    EntityTransaction t = em.getTransaction();

    try {
        t.begin();
        T tmp = em.contains(obj) ? obj : em.merge(obj);
        em.remove(tmp);
        t.commit();
        return tmp;
    } catch (Exception e) {
        t.rollback();
        throw e;
    }
}

From source file:de.iai.ilcd.model.dao.AbstractDao.java

/**
 * Default merge/*  w ww.ja v a 2  s.  co m*/
 * 
 * @param objs
 *            objects to merge
 * @return list of merged/managed objects
 * @throws MergeException
 *             on errors (transaction is being rolled back)
 */
public Collection<T> merge(Collection<T> objs) throws MergeException {
    if (objs == null || objs.isEmpty()) {
        return null;
    }
    final Collection<T> tmp = new ArrayList<T>();
    EntityManager em = PersistenceUtil.getEntityManager();
    EntityTransaction t = em.getTransaction();

    try {
        t.begin();
        for (T obj : objs) {
            tmp.add(em.merge(obj));
        }
        t.commit();
        return tmp;
    } catch (Exception e) {
        t.rollback();
        throw new MergeException("Cannot merge changes to " + String.valueOf(objs) + " into the database", e);
    }
}

From source file:org.apache.juddi.api.impl.UDDIv2PublishImpl.java

private String getUsername(String authinfo) {
    String user = "N/A";

    EntityManager em = PersistenceManager.getEntityManager();
    EntityTransaction tx = em.getTransaction();
    try {//from  ww  w . ja va2s  .  co m

        tx.begin();
        user = publishService.getEntityPublisher(em, authinfo).getAuthorizedName();
        tx.commit();
    } catch (Exception ex) {
        logger.error(ex);
    } finally {
        if (tx.isActive()) {
            tx.rollback();
        }
        em.close();
    }
    return user;
}

From source file:info.san.books.app.model.listener.LivreListener.java

@EventHandler
public void handle(LivreAssignedAuteurEvent e) {
    EntityManager em = Persistence.getInstance().createEntityManager();

    EntityTransaction t = em.getTransaction();

    t.begin();//from   w w  w  .j a  v a2  s  . c om

    LivreEntry livre = em.find(LivreEntry.class, e.getIsbn());
    AuteurEntry auteur = em.find(AuteurEntry.class, e.getAuteurId());

    livre.getAuteurs().add(auteur);
    auteur.getLivres().add(livre);

    t.commit();
}

From source file:org.eclipse.jubula.client.core.persistence.Persistor.java

/**
 * // w  w w  .ja  v  a  2  s .  c  o m
 * @param em
 *            entity manager
 * @throws PersistenceException
 *             if we blow up
 */
private static void createOrUpdateDBGuard(EntityManager em) throws PersistenceException {
    EntityTransaction tx = null;
    try {
        tx = em.getTransaction();
        tx.begin();

        try {
            em.createQuery("select guard from DbGuardPO as guard").getSingleResult(); //$NON-NLS-1$
        } catch (NoResultException nre) {
            LockManager.initDbGuard(em);
        }

        tx.commit();
    } catch (PersistenceException pe) {
        if (tx != null) {
            tx.rollback();
        }
        throw pe;
    }
}

From source file:facades.PersonFacadeDB.java

@Override
public Person delete(Integer id) throws NotFoundException {
    EntityManagerFactory emf = Persistence.createEntityManagerFactory(persistenceFileName);
    EntityManager em = emf.createEntityManager();
    EntityTransaction transaction = em.getTransaction();
    transaction.begin();//from   w  ww .j  a va 2 s .  co m

    Person p = em.find(Person.class, id);

    if (p == null) {
        transaction.rollback();
        throw new NotFoundException("No person for the given id");
    } else {
        em.remove(p);
        transaction.commit();
    }

    return p;
}

From source file:info.san.books.app.model.listener.LivreListener.java

@EventHandler
public void handle(LivreUnassignedAuteurEvent e) {
    EntityManager em = Persistence.getInstance().createEntityManager();

    EntityTransaction t = em.getTransaction();

    t.begin();//from  www .j  a  va 2 s.  c o  m

    LivreEntry livre = em.find(LivreEntry.class, e.getIsbn());
    AuteurEntry auteur = em.find(AuteurEntry.class, e.getAuteurId());

    livre.getAuteurs().remove(auteur);
    auteur.getLivres().remove(livre);

    t.commit();
}

From source file:org.apache.ranger.audit.provider.DbAuditProvider.java

private boolean commitTransaction() {
    boolean ret = false;
    EntityTransaction trx = null;

    try {// ww  w. java  2  s. c o m
        trx = getTransaction();

        if (trx != null && trx.isActive()) {
            trx.commit();

            ret = true;
        } else {
            throw new Exception("trx is null or not active");
        }
    } catch (Exception excp) {
        logDbError("DbAuditProvider.commitTransaction(): failed", excp);

        cleanUp(); // so that next insert will try to init()
    } finally {
        clearEntityManager();
    }

    return ret;
}

From source file:org.apache.james.user.jpa.JPAUsersRepository.java

/**
 * Update the repository with the specified user object. A user object with
 * this username must already exist.//from   ww w  .jav  a  2s  .  c o m
 * 
 * @throws UsersRepositoryException
 */
public void updateUser(User user) throws UsersRepositoryException {
    EntityManager entityManager = entityManagerFactory.createEntityManager();

    final EntityTransaction transaction = entityManager.getTransaction();
    try {
        if (contains(user.getUserName())) {
            transaction.begin();
            entityManager.merge(user);
            transaction.commit();
        } else {
            getLogger().debug("User not found");
            throw new UsersRepositoryException("User " + user.getUserName() + " not found");
        }
    } catch (PersistenceException e) {
        getLogger().debug("Failed to update user", e);
        if (transaction.isActive()) {
            transaction.rollback();
        }
        throw new UsersRepositoryException("Failed to update user " + user.getUserName(), e);
    } finally {
        entityManager.close();
    }
}

From source file:com.edugility.substantia.substance.TestCasePerson.java

@Test
public void testingJPA() throws Exception {
    final EntityManagerFactory emf = Persistence.createEntityManagerFactory("test");
    assertNotNull(emf);/*w  ww  .j  a  va  2 s .  c  o  m*/

    final EntityManager em = emf.createEntityManager();
    assertNotNull(em);

    final EntityTransaction et = em.getTransaction();
    assertNotNull(et);
    et.begin();

    final Person p = new Person();
    em.persist(p);
    em.flush();
    assertFalse(p.isTransient());
    assertTrue(p.isVersioned());
    assertEquals(Long.valueOf(1L), p.getId());
    assertEquals(Integer.valueOf(1), p.getVersion());

    et.commit();
    et.begin();

    final Person p2 = em.find(Person.class, 1L, LockModeType.OPTIMISTIC_FORCE_INCREMENT);
    assertNotNull(p2);
    assertFalse(p2.isTransient());
    assertTrue(p2.isVersioned());
    assertEquals(Long.valueOf(1L), p2.getId());
    assertEquals(Integer.valueOf(1), p2.getVersion());

    et.commit();
    et.begin();

    final Person p3 = em.getReference(Person.class, 1L);
    assertNotNull(p3);
    assertFalse(p3.isTransient());
    assertTrue(p3.isVersioned());
    assertEquals(Long.valueOf(1L), p3.getId());
    assertEquals(Integer.valueOf(2), p3.getVersion());

    et.commit();
    et.begin();

    assertTrue(em.contains(p));
    em.remove(p);

    et.commit();

    em.close();

    emf.close();
}