org.hibernate.Session#find ( )源码实例Demo

/**
 * Should use hibernate orm 52.
 */
@Test
@Transactional(value=TransactionMode.ROLLBACK)
public void shouldUseHibernateOrm52() {
	Session session = entityManager.unwrap( Session.class );

	Kryptonite kryptonite1 = new Kryptonite();
	kryptonite1.id = 1L;
	kryptonite1.description = "Some Kryptonite";
	session.persist( kryptonite1 );

	session.flush();
	session.clear();

	// EntityManager methods exposed through Session only as of 5.2
	Kryptonite loaded = session.find( Kryptonite.class, 1L );

	assertThat( loaded.description, equalTo( "Some Kryptonite" ) );
}
 

@Test
public void whenAccessUserRolesOutsideSession_thenThrownException() {

    User detachedUser = createUserWithRoles();

    Session session = sessionFactory.openSession();
    session.beginTransaction();

    User persistentUser = session.find(User.class, detachedUser.getId());

    session.getTransaction().commit();
    session.close();

    thrown.expect(LazyInitializationException.class);
    System.out.println(persistentUser.getRoles().size());
}
 

@Test
public void whenAccessUserRolesInsideSession_thenSuccess() {

    User detachedUser = createUserWithRoles();

    Session session = sessionFactory.openSession();
    session.beginTransaction();

    User persistentUser = session.find(User.class, detachedUser.getId());

    Assert.assertEquals(2, persistentUser.getRoles().size());

    session.getTransaction().commit();
    session.close();
}
 

@Test
public void whenBootstrapHibernateSession_thenNoException() {

    Session session = sessionFactory.getCurrentSession();

    TestEntity newEntity = new TestEntity();
    newEntity.setId(1);
    session.save(newEntity);

    TestEntity searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);
}
 

@Test
public void whenBootstrapHibernateSession_thenNoException() {

    Session session = sessionFactory.getCurrentSession();

    TestEntity newEntity = new TestEntity();
    newEntity.setId(1);
    session.save(newEntity);

    TestEntity searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);
}
 

@Test
public void whenBootstrapHibernateSession_thenNoException() {

    Session session = sessionFactory.getCurrentSession();

    TestEntity newEntity = new TestEntity();
    newEntity.setId(1);
    session.save(newEntity);

    TestEntity searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);
}
 

@Test
public void whenBootstrapHibernateSession_thenNoException() {

    Session session = sessionFactory.getCurrentSession();

    TestEntity newEntity = new TestEntity();
    newEntity.setId(1);
    session.save(newEntity);

    TestEntity searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);
}
 

@Test
public void whenProgrammaticTransactionCommit_thenEntityIsInDatabase() {
    assertTrue(TestTransaction.isActive());

    //Save an entity and commit.
    Session session = sessionFactory.getCurrentSession();

    TestEntity newEntity = new TestEntity();
    newEntity.setId(1);
    session.save(newEntity);

    TestEntity searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);
    assertTrue(TestTransaction.isFlaggedForRollback());

    TestTransaction.flagForCommit();
    TestTransaction.end();

    assertFalse(TestTransaction.isFlaggedForRollback());
    assertFalse(TestTransaction.isActive());

    //Check that the entity is still there in a new transaction,
    //then delete it, but don't commit.
    TestTransaction.start();

    assertTrue(TestTransaction.isFlaggedForRollback());
    assertTrue(TestTransaction.isActive());

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);

    session.delete(searchEntity);
    session.flush();

    TestTransaction.end();

    assertFalse(TestTransaction.isActive());

    //Check that the entity is still there in a new transaction,
    //then delete it and commit.
    TestTransaction.start();

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);

    session.delete(searchEntity);
    session.flush();

    assertTrue(TestTransaction.isActive());

    TestTransaction.flagForCommit();
    TestTransaction.end();

    assertFalse(TestTransaction.isActive());

    //Check that the entity is no longer there in a new transaction.
    TestTransaction.start();

    assertTrue(TestTransaction.isActive());

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNull(searchEntity);
}
 

@Test
@Commit
public void givenTransactionCommitDefault_whenProgrammaticTransactionCommit_thenEntityIsInDatabase() {
    assertTrue(TestTransaction.isActive());

    //Save an entity and commit.
    Session session = sessionFactory.getCurrentSession();

    TestEntity newEntity = new TestEntity();
    newEntity.setId(1);
    session.save(newEntity);

    TestEntity searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);
    assertFalse(TestTransaction.isFlaggedForRollback());

    TestTransaction.end();

    assertFalse(TestTransaction.isFlaggedForRollback());
    assertFalse(TestTransaction.isActive());

    //Check that the entity is still there in a new transaction,
    //then delete it, but don't commit.
    TestTransaction.start();

    assertFalse(TestTransaction.isFlaggedForRollback());
    assertTrue(TestTransaction.isActive());

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);

    session.delete(searchEntity);
    session.flush();

    TestTransaction.flagForRollback();
    TestTransaction.end();

    assertFalse(TestTransaction.isActive());

    //Check that the entity is still there in a new transaction,
    //then delete it and commit.
    TestTransaction.start();

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);

    session.delete(searchEntity);
    session.flush();

    assertTrue(TestTransaction.isActive());

    TestTransaction.end();

    assertFalse(TestTransaction.isActive());

    //Check that the entity is no longer there in a new transaction.
    TestTransaction.start();

    assertTrue(TestTransaction.isActive());

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNull(searchEntity);
}
 

@Test
public void whenProgrammaticTransactionCommit_thenEntityIsInDatabase() {
    assertTrue(TestTransaction.isActive());

    //Save an entity and commit.
    Session session = sessionFactory.getCurrentSession();

    TestEntity newEntity = new TestEntity();
    newEntity.setId(1);
    session.save(newEntity);

    TestEntity searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);
    assertTrue(TestTransaction.isFlaggedForRollback());

    TestTransaction.flagForCommit();
    TestTransaction.end();

    assertFalse(TestTransaction.isFlaggedForRollback());
    assertFalse(TestTransaction.isActive());

    //Check that the entity is still there in a new transaction,
    //then delete it, but don't commit.
    TestTransaction.start();

    assertTrue(TestTransaction.isFlaggedForRollback());
    assertTrue(TestTransaction.isActive());

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);

    session.delete(searchEntity);
    session.flush();

    TestTransaction.end();

    assertFalse(TestTransaction.isActive());

    //Check that the entity is still there in a new transaction,
    //then delete it and commit.
    TestTransaction.start();

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);

    session.delete(searchEntity);
    session.flush();

    assertTrue(TestTransaction.isActive());

    TestTransaction.flagForCommit();
    TestTransaction.end();

    assertFalse(TestTransaction.isActive());

    //Check that the entity is no longer there in a new transaction.
    TestTransaction.start();

    assertTrue(TestTransaction.isActive());

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNull(searchEntity);
}
 

@Test
@Commit
public void givenTransactionCommitDefault_whenProgrammaticTransactionCommit_thenEntityIsInDatabase() {
    assertTrue(TestTransaction.isActive());

    //Save an entity and commit.
    Session session = sessionFactory.getCurrentSession();

    TestEntity newEntity = new TestEntity();
    newEntity.setId(1);
    session.save(newEntity);

    TestEntity searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);
    assertFalse(TestTransaction.isFlaggedForRollback());

    TestTransaction.end();

    assertFalse(TestTransaction.isFlaggedForRollback());
    assertFalse(TestTransaction.isActive());

    //Check that the entity is still there in a new transaction,
    //then delete it, but don't commit.
    TestTransaction.start();

    assertFalse(TestTransaction.isFlaggedForRollback());
    assertTrue(TestTransaction.isActive());

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);

    session.delete(searchEntity);
    session.flush();

    TestTransaction.flagForRollback();
    TestTransaction.end();

    assertFalse(TestTransaction.isActive());

    //Check that the entity is still there in a new transaction,
    //then delete it and commit.
    TestTransaction.start();

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNotNull(searchEntity);

    session.delete(searchEntity);
    session.flush();

    assertTrue(TestTransaction.isActive());

    TestTransaction.end();

    assertFalse(TestTransaction.isActive());

    //Check that the entity is no longer there in a new transaction.
    TestTransaction.start();

    assertTrue(TestTransaction.isActive());

    session = sessionFactory.getCurrentSession();
    searchEntity = session.find(TestEntity.class, 1);

    Assert.assertNull(searchEntity);
}