Develop the Data Access Tier

@RunWith( SpringJUnit4ClassRunner.class )
@ContextConfiguration( locations = { "classpath:context.xml" } )
@TransactionConfiguration( defaultRollback = true )
@Transactional
public class ProtocolDaoImplTest {
	@Autowired
	private ProtocolDao dao ;

	@Test
	public void testGetAll() {
		Assert.assertEquals(0L, dao.getAll().size());
	}
}

@Repository
@Transactional
public class ProtocolDaoImpl  implements ProtocolDao {
	@Autowired
	private SessionFactory sessionFactory ;

	@SuppressWarnings("unchecked")
	@Override
	public List<Protocol> getAll() {
		return sessionFactory.getCurrentSession().createQuery("select protocol from Protocol protocol order by protocol.id desc").list();
	}
}