| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.openjpa.persistence.callbacks; |
| |
| import javax.persistence.Query; |
| |
| import org.apache.openjpa.persistence.test.SingleEMFTestCase; |
| import org.apache.openjpa.persistence.OpenJPAEntityManager; |
| |
| public class TestMessageListeners extends SingleEMFTestCase { |
| |
| public void setUp() { |
| setUp(DROP_TABLES); |
| } |
| |
| @Override |
| protected String getPersistenceUnitName() { |
| return "listener-pu"; |
| } |
| |
| public void testUpdateInPrePersist() { |
| // Create a new EntityManager from the EntityManagerFactory. The |
| // EntityManager is the main object in the persistence API, and is |
| // used to create, delete, and query objects, as well as access |
| // the current transaction |
| OpenJPAEntityManager em = emf.createEntityManager(); |
| try { |
| // Begin a new local transaction so that we can persist a new entity |
| em.getTransaction().begin(); |
| |
| MessageListenerImpl.resetCounters(); |
| |
| // Create and persist a new Message entity |
| Message message = new Message("Hello Persistence!"); |
| assertNull("Test message's created field to be null.", message |
| .getCreated()); |
| assertNull("Test message's updated field to be null.", message |
| .getUpdated()); |
| |
| em.persist(message); |
| |
| // Pre-persist invoked, created and updated fields set |
| assertStatus(1, 0, 0, 0, 0, 0, 0); |
| assertNotNull("Test message's created field being set.", message |
| .getCreated()); |
| assertNotNull("Test message's updated field being set.", message |
| .getUpdated()); |
| |
| em.flush(); |
| // Post-persist invoked |
| assertStatus(1, 1, 0, 0, 0, 0, 0); |
| |
| em.clear(); |
| |
| // Perform a simple query to get the Message |
| Query q = em.createQuery("select m from Message m where m.id=" |
| + message.getId()); |
| Message m = (Message) q.getSingleResult(); |
| |
| assertEquals("Test first expected message.", "Hello Persistence!", |
| m.getMessage()); |
| assertNotNull("Test message's created field being set.", m |
| .getCreated()); |
| assertNotNull("Test message's updated field being set.", m |
| .getUpdated()); |
| |
| // query trigger a load because em is cleared. |
| assertStatus(1, 1, 0, 0, 0, 0, 1); |
| |
| em.getTransaction().commit(); |
| |
| // since data is flushed, commit data with no event fired. |
| assertStatus(1, 1, 0, 0, 0, 0, 1); |
| } finally { |
| if (em != null && em.getTransaction().isActive()) |
| em.getTransaction().rollback(); |
| if (em != null && em.isOpen()) |
| em.close(); |
| } |
| } |
| |
| public void testUpdateInPreUpdate() { |
| // Create a new EntityManager from the EntityManagerFactory. The |
| // EntityManager is the main object in the persistence API, and is |
| // used to create, delete, and query objects, as well as access |
| // the current transaction |
| OpenJPAEntityManager em = emf.createEntityManager(); |
| try { |
| // Begin a new local transaction so that we can persist a new entity |
| em.getTransaction().begin(); |
| |
| MessageListenerImpl.resetCounters(); |
| |
| // Create and persist a new Message entity |
| Message message = new Message("Hello Persistence!"); |
| assertNull("Test message's created field to be null.", message |
| .getCreated()); |
| assertNull("Test message's updated field to be null.", message |
| .getUpdated()); |
| |
| em.persist(message); |
| |
| // Pre-persist invoked, created and updated fields set |
| assertStatus(1, 0, 0, 0, 0, 0, 0); |
| assertNotNull("Test message's created field being set.", message |
| .getCreated()); |
| assertNotNull("Test message's updated field being set.", message |
| .getUpdated()); |
| |
| // Perform a simple query to get the Message |
| Query q = em.createQuery("select m from Message m where m.id=" |
| + message.getId()); |
| Message m = (Message) q.getSingleResult(); |
| assertEquals("Test first expected message.", "Hello Persistence!", |
| m.getMessage()); |
| assertNotNull("Test message's created field being set.", m |
| .getCreated()); |
| assertNotNull("Test message's updated field being set.", m |
| .getUpdated()); |
| |
| // Query cause flush to occur, hence fire the postPersist event |
| assertStatus(1, 1, 0, 0, 0, 0, 0); |
| |
| // Create and persist another new Message entity |
| message = new Message("Hello Persistence 2!"); |
| assertNull("Test message's created field to be null.", message |
| .getCreated()); |
| assertNull("Test message's updated field to be null.", message |
| .getUpdated()); |
| |
| em.persist(message); |
| |
| // Pre-persist invoked, created and updated fields set |
| assertStatus(2, 1, 0, 0, 0, 0, 0); |
| assertNotNull("Test message's created field being set.", message |
| .getCreated()); |
| assertNotNull("Test message's updated field being set.", message |
| .getUpdated()); |
| |
| em.getTransaction().commit(); |
| |
| // Complete the 2nd @postPersist |
| //assertStatus(2, 2, 0, 0, 0, 0, 0); |
| // preUpdate and postUpdate are called in 1.2.x but not in 2.0 |
| assertStatus(2, 2, 1, 1, 0, 0, 0); |
| |
| // Make an update to trigger the pre/postUpdater callbacks |
| em.getTransaction().begin(); |
| message = em.find(Message.class,message.getId()); |
| message.setMessage("Update field and trigger pre/postUpdate"); |
| em.getTransaction().commit(); |
| |
| // Complete the 2nd @postPersist |
| assertStatus(2, 2, 2, 2, 0, 0, 0); |
| |
| } finally { |
| if (em != null && em.getTransaction().isActive()) |
| em.getTransaction().rollback(); |
| if (em != null && em.isOpen()) |
| em.close(); |
| } |
| } |
| |
| private void assertStatus(int prePersist, int postPersist, int preUpdate, |
| int postUpdate, int preRemove, int postRemove, int postLoad) { |
| assertEquals(prePersist, MessageListenerImpl.prePersistCount); |
| assertEquals(postPersist, MessageListenerImpl.postPersistCount); |
| assertEquals(preUpdate, MessageListenerImpl.preUpdateCount); |
| assertEquals(postUpdate, MessageListenerImpl.postUpdateCount); |
| assertEquals(preRemove, MessageListenerImpl.preRemoveCount); |
| assertEquals(postRemove, MessageListenerImpl.postRemoveCount); |
| assertEquals(postLoad, MessageListenerImpl.postLoadCount); |
| } |
| } |