| /* |
| * 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.simple; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.ObjectInputStream; |
| import java.io.ObjectOutputStream; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| |
| import javax.persistence.EntityManager; |
| |
| import org.apache.openjpa.persistence.OpenJPAPersistence; |
| import org.apache.openjpa.persistence.test.SQLListenerTestCase; |
| |
| public class TestFlushBeforeDetach extends SQLListenerTestCase { |
| |
| private int _id; |
| |
| @Override |
| public void setUp() { |
| setUp(Item.class,"openjpa.Compatibility", |
| "default(flushBeforeDetach=false,copyOnDetach=true)"); |
| persistSampleEntity(); |
| } |
| |
| private void persistSampleEntity() { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| Item i = new Item(); |
| em.persist(i); |
| em.getTransaction().commit(); |
| em.refresh(i); |
| _id = i.getItemId(); |
| em.close(); |
| } |
| |
| public void testClear() { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| |
| Item i = em.find(Item.class, _id); |
| |
| i.setItemData("ABCD"); |
| |
| em.clear(); |
| em.getTransaction().rollback(); |
| assertNotSQL("UPDATE ITEM.*"); |
| em.close(); |
| } |
| |
| public void testDetach() { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| |
| Item i = em.find(Item.class, _id); |
| |
| i.setItemData("EFGH"); |
| |
| OpenJPAPersistence.cast(em).detach(i); |
| em.getTransaction().rollback(); |
| assertNotSQL("UPDATE ITEM SET.*"); |
| em.close(); |
| } |
| |
| public void testDetachAll() { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| |
| Item i = em.find(Item.class, _id); |
| |
| i.setItemData("IJKL"); |
| |
| OpenJPAPersistence.cast(em).detachAll(i); |
| em.getTransaction().rollback(); |
| assertNotSQL("UPDATE ITEM SET.*"); |
| em.close(); |
| } |
| |
| public void testDetachAllCollection() { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| |
| Item i = em.find(Item.class, _id); |
| |
| i.setItemData("MNOP"); |
| |
| Collection<Item> c = new ArrayList<>(); |
| c.add(i); |
| OpenJPAPersistence.cast(em).detachAll(c); |
| em.getTransaction().rollback(); |
| assertNotSQL("UPDATE ITEM SET.*"); |
| em.close(); |
| } |
| |
| public void testSerialize() throws Exception { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| |
| Item i = em.find(Item.class, _id); |
| |
| i.setItemData("QRSTU"); |
| |
| serializeObject(i); |
| |
| em.getTransaction().rollback(); |
| assertNotSQL("UPDATE ITEM SET.*"); |
| em.close(); |
| } |
| |
| /** |
| * Helper to serialize an object to a byte[] |
| */ |
| private Object serializeObject(Object orig) throws Exception { |
| Object deserialized = null; |
| ObjectOutputStream oos = null; |
| ObjectInputStream ois = null; |
| |
| try { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| oos = new ObjectOutputStream(baos); |
| oos.writeObject(orig); |
| |
| ByteArrayInputStream bais = |
| new ByteArrayInputStream(baos.toByteArray()); |
| ois = new ObjectInputStream(bais); |
| |
| deserialized = ois.readObject(); |
| return deserialized; |
| } finally { |
| oos.close(); |
| ois.close(); |
| } |
| } |
| } |