| /* |
| * 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.enhance; |
| |
| import java.lang.reflect.Proxy; |
| import java.util.Collection; |
| |
| import org.apache.openjpa.persistence.test.SingleEMTestCase; |
| |
| public class TestUnenhancedOneToMany extends SingleEMTestCase { |
| |
| @Override |
| public void setUp() { |
| setUp(UnenhancedOne.class, UnenhancedMany.class, CLEAR_TABLES); |
| } |
| |
| public void testOneToMany() throws Exception { |
| assertFalse(PersistenceCapable.class.isAssignableFrom( |
| UnenhancedOne.class)); |
| assertFalse(PersistenceCapable.class.isAssignableFrom( |
| UnenhancedMany.class)); |
| |
| em.getTransaction().begin(); |
| |
| UnenhancedOne one = new UnenhancedOne(1000); |
| |
| UnenhancedMany manyA = new UnenhancedMany(1); |
| one.getMany().add(manyA); |
| manyA.setOne(one); |
| |
| UnenhancedMany manyB = new UnenhancedMany(2); |
| one.getMany().add(manyB); |
| manyB.setOne(one); |
| |
| UnenhancedMany manyC = new UnenhancedMany(3); |
| one.getMany().add(manyC); |
| manyC.setOne(one); |
| |
| // em should not know about our entities |
| assertFalse(em.contains(one)); |
| assertFalse(em.contains(manyA)); |
| assertFalse(em.contains(manyB)); |
| assertFalse(em.contains(manyC)); |
| |
| // persist the entity |
| em.persist(one); |
| em.persist(manyA); |
| em.persist(manyB); |
| em.persist(manyC); |
| em.flush(); |
| |
| // em should now be aware of our entity |
| assertTrue(em.contains(one)); |
| assertTrue(em.contains(manyA)); |
| assertTrue(em.contains(manyB)); |
| assertTrue(em.contains(manyC)); |
| |
| em.getTransaction().commit(); |
| |
| // recreate entity manager to avoid caching |
| one = null; |
| manyA = null; |
| manyB = null; |
| manyC = null; |
| em.close(); |
| em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| |
| // reload one |
| one = em.find(UnenhancedOne.class, 1000); |
| assertNotNull("one is null", one); |
| |
| // verify one.getMany(); ensure that it's a dynamic proxy before |
| // it is accessed |
| assertTrue(Proxy.isProxyClass(one.many.getClass())); |
| assertNotNull("one.getMany() is null", one.getMany()); |
| Collection<UnenhancedMany> many = one.getMany(); |
| assertEquals(3, many.size()); |
| |
| // reload the many |
| manyA = em.find(UnenhancedMany.class, 1); |
| assertNotNull("manyA is null", manyA); |
| manyB = em.find(UnenhancedMany.class, 2); |
| assertNotNull("manyB is null", manyA); |
| manyC = em.find(UnenhancedMany.class, 3); |
| assertNotNull("manyc is null", manyA); |
| |
| // verify many.getOne() |
| assertNotNull("manyA.getOne() is null", manyA.getOne()); |
| assertEquals(one, manyA.getOne()); |
| assertNotNull("manyB.getOne() is null", manyB.getOne()); |
| assertEquals(one, manyB.getOne()); |
| assertNotNull("manyC.getOne() is null", manyC.getOne()); |
| assertEquals(one, manyC.getOne()); |
| |
| // verify collection contains each many |
| assertTrue(many.contains(manyA)); |
| assertTrue(many.contains(manyB)); |
| assertTrue(many.contains(manyC)); |
| |
| em.getTransaction().commit(); |
| } |
| } |