Example usage for javax.persistence EntityManager getTransaction

List of usage examples for javax.persistence EntityManager getTransaction

  1. HOME
  2. Java
  3. javax
  4. javax.persistence.*
  5. EntityManager
  6. getTransaction

Introduction

In this page you can find the example usage for javax.persistence EntityManager getTransaction.

Prototype

public EntityTransaction getTransaction();

Source Link

Document

Return the resource-level EntityTransaction object.

Usage

From source file:kirchnerei.note.model.DataService.java

public boolean removeNote(Long id) {
    if (NumberUtils.isEmpty(id)) {
        return false;
    }/*from   ww w  .j  ava 2 s .  c o m*/
    EntityManager em = null;
    EntityTransaction tx = null;
    try {
        em = entityService.get();
        tx = em.getTransaction();
        tx.begin();
        Note note = em.find(Note.class, id);
        if (note == null) {
            return false;
        }
        Category category = note.getCategory();
        category.getNotes().remove(note);
        note.setCategory(null);
        em.remove(note);
        if (category.getNotes().isEmpty()) {
            LogUtils.debug(log, "empty category '%s', then remove it", category.getTitle());
            em.remove(category);
        }
        EntityService.commit(tx);
        return true;
    } catch (Exception e) {
        EntityService.rollback(tx);
        return false;
    } finally {
        EntityService.close(em);
    }
}

From source file:com.epam.training.taranovski.web.project.repository.implementation.EmployeeRepositoryImplementation.java

@Override
public List<Employee> getAll() {
    EntityManager em = entityManagerFactory.createEntityManager();
    List<Employee> list = new LinkedList<>();
    try {/*from ww w .java  2 s  .c o  m*/
        em.getTransaction().begin();

        TypedQuery<Employee> query = em.createNamedQuery("Employee.findAll", Employee.class);
        list = query.getResultList();

        em.getTransaction().commit();
    } catch (RuntimeException e) {
        Logger.getLogger(EmployeeRepositoryImplementation.class.getName()).info(e);
    } finally {
        if (em.getTransaction().isActive()) {
            em.getTransaction().rollback();
        }
        em.close();
    }

    return list;
}

From source file:com.epam.training.taranovski.web.project.repository.implementation.EmployeeRepositoryImplementation.java

@Override
public List<Employee> getAllFreeEmployees() {
    EntityManager em = entityManagerFactory.createEntityManager();
    List<Employee> list = new LinkedList<>();
    try {//w  w  w.  j a v  a  2s.  com
        em.getTransaction().begin();

        TypedQuery<Employee> query = em.createNamedQuery("Employee.findAllFreeEmployees", Employee.class);
        list = query.getResultList();

        em.getTransaction().commit();
    } catch (RuntimeException e) {
        Logger.getLogger(EmployeeRepositoryImplementation.class.getName()).info(e);
    } finally {
        if (em.getTransaction().isActive()) {
            em.getTransaction().rollback();
        }
        em.close();
    }

    return list;
}

From source file:com.thruzero.domain.jpa.transaction.JpaDatabaseTransactionMgr.java

@Override
public EntityTransaction beginTransaction() {
    EntityManager currentEntityManager = doGetCurrentPersistenceManager(true);

    return currentEntityManager.getTransaction();
}

From source file:com.epam.training.taranovski.web.project.repository.implementation.EmployeeRepositoryImplementation.java

@Override
public List<UserSkill> getSkills(Employee employee) {
    EntityManager em = entityManagerFactory.createEntityManager();
    List<UserSkill> list = new LinkedList<>();
    try {//from w w  w .  j a  va  2 s .c o m
        em.getTransaction().begin();

        TypedQuery<UserSkill> query = em.createNamedQuery("UserSkill.findByEmployee", UserSkill.class);
        query.setParameter("employee", employee);
        list = query.getResultList();

        em.getTransaction().commit();
    } catch (RuntimeException e) {
        Logger.getLogger(EmployeeRepositoryImplementation.class.getName()).info(e);
    } finally {
        if (em.getTransaction().isActive()) {
            em.getTransaction().rollback();
        }
        em.close();
    }

    return list;
}

From source file:com.github.jinahya.persistence.ShadowTest.java

@Test(enabled = false, invocationCount = 1)
public void testPuthenticate() {
    final EntityManager manager = LocalPU.createEntityManager();
    try {/*from ww  w .  j a  v a  2 s . com*/
        final EntityTransaction transaction = manager.getTransaction();
        transaction.begin();
        try {
            final String username = newUsername(manager);
            final byte[] password = newPassword();

            final Shadow shadow = persistInstance(manager, username, password);

            Assert.assertTrue(shadow.puthenticate(shadow, password));

            transaction.commit();
        } catch (Exception e) {
            LocalPU.printConstraintViolation(e);
            transaction.rollback();
            e.printStackTrace(System.err);
            Assert.fail(e.getMessage());
        }
    } finally {
        manager.close();
    }
}

From source file:com.epam.training.taranovski.web.project.repository.implementation.VacancyRepositoryImplementation.java

@Override
public List<Vacancy> getAll() {
    EntityManager em = entityManagerFactory.createEntityManager();
    List<Vacancy> list = new LinkedList<>();
    try {//from  w w w.j a va 2 s .  c  om
        em.getTransaction().begin();

        TypedQuery<Vacancy> query = em.createNamedQuery("Vacancy.findAll", Vacancy.class);
        list = query.getResultList();

        em.getTransaction().commit();
    } catch (RuntimeException e) {
        Logger.getLogger(VacancyRepositoryImplementation.class.getName()).info(e);
    } finally {
        if (em.getTransaction().isActive()) {
            em.getTransaction().rollback();
        }
        em.close();
    }

    return list;
}

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

/**
 * Default persist//  w w w.j  a  va  2  s. co m
 * 
 * @param obj
 *            object to persist
 * @throws PersistException
 *             on errors (transaction is being rolled back)
 */
public void persist(T obj) throws PersistException {
    if (obj == null) {
        return;
    }
    EntityManager em = PersistenceUtil.getEntityManager();
    EntityTransaction t = em.getTransaction();

    try {
        t.begin();
        em.persist(obj);
        t.commit();
    } catch (Exception e) {
        t.rollback();
        throw new PersistException(e.getMessage(), e);
    }
}

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

/**
 * Default merge/*from  ww w  . j av  a  2s .  c  om*/
 * 
 * @param obj
 *            object to merge
 * @throws MergeException
 *             on errors (transaction is being rolled back)
 * @return managed object
 */
public T merge(T obj) throws MergeException {
    if (obj == null) {
        return null;
    }
    EntityManager em = PersistenceUtil.getEntityManager();
    EntityTransaction t = em.getTransaction();

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

From source file:com.github.jinahya.persistence.ShadowTest.java

@Test(enabled = true, invocationCount = 1)
public void testNassword0() {
    final EntityManager manager = LocalPU.createEntityManager();
    try {//from  w  w w  .j  a  va2  s . c  om
        final EntityTransaction transaction = manager.getTransaction();
        transaction.begin();
        try {
            final String username = newUsername(manager);
            final byte[] password = newPassword();
            Shadow shadow = persistInstance(manager, username, password);
            Assert.assertTrue(shadow.puthenticate(shadow, password));
            System.out.println("=========================================");
            LOGGER.log(Level.INFO, "mortons: {0}", MORTONS(manager, 0, 1024));
            final byte[] nassword = newPassword();
            shadow.nassword(shadow, password, nassword);
            shadow = manager.merge(shadow);
            manager.flush();
            System.out.println("=========================================");
            LOGGER.log(Level.INFO, "mortons: {0}", MORTONS(manager, 0, 1024));
            Assert.assertFalse(shadow.puthenticate(shadow, password));
            Assert.assertTrue(shadow.puthenticate(shadow, nassword));
            transaction.commit();
        } catch (Exception e) {
            transaction.rollback();
            e.printStackTrace(System.err);
            Assert.fail(e.getMessage());
        }
    } finally {
        manager.close();
    }
}