| /* |
| * 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.jdbc.kernel; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import javax.persistence.EntityManager; |
| |
| import org.apache.openjpa.persistence.test.SingleEMFTestCase; |
| |
| /** |
| * Test that sql statements get flushed in an order which does not violate |
| * non-nullable foreign key constraints on inserts and deletes. |
| * |
| * @author Reece Garrett |
| */ |
| public class TestNoForeignKeyViolation |
| extends SingleEMFTestCase { |
| |
| private EntityA entityA; |
| private EntityB entityB; |
| private EntityC entityC; |
| private EntityD entityD; |
| |
| public void setUp() { |
| setUp(EntityA.class, EntityB.class, EntityC.class, EntityD.class, |
| EntityE.class, EntityF.class, EntityG.class); |
| |
| createTestData(); |
| } |
| |
| private void createTestData() { |
| entityA = new EntityA(); |
| entityB = new EntityB(); |
| entityC = new EntityC(); |
| entityD = new EntityD(); |
| entityA.setName("entityA"); |
| entityB.setName("entityB"); |
| entityC.setName("entityC"); |
| entityD.setName("entityD"); |
| entityA.setEntityB(entityB); |
| entityB.setEntityC(entityC); |
| entityC.setEntityD(entityD); |
| } |
| |
| public void testSqlOrder() { |
| EntityManager em = emf.createEntityManager(); |
| try { |
| em.getTransaction().begin(); |
| em.persist(entityA); |
| em.getTransaction().commit(); |
| |
| EntityD newEntityD = new EntityD(); |
| newEntityD.setName("newEntityD"); |
| entityC.setEntityD(newEntityD); |
| |
| em.getTransaction().begin(); |
| em.merge(entityC); |
| em.getTransaction().commit(); |
| |
| EntityC newEntityC = new EntityC(); |
| newEntityC.setName("newEntityC"); |
| newEntityD = new EntityD(); |
| newEntityD.setName("newNewEntityD"); |
| newEntityC.setEntityD(newEntityD); |
| entityB.setEntityC(newEntityC); |
| |
| em.getTransaction().begin(); |
| em.merge(entityB); |
| em.getTransaction().commit(); |
| } |
| finally { |
| if (em.getTransaction().isActive()) |
| em.getTransaction().rollback(); |
| em.close(); |
| } |
| } |
| |
| public void testSimpleCycle() { |
| EntityManager em = emf.createEntityManager(); |
| try { |
| em.getTransaction().begin(); |
| entityD.setEntityA(entityA); |
| em.persist(entityA); |
| em.getTransaction().commit(); |
| } |
| finally { |
| if (em.getTransaction().isActive()) |
| em.getTransaction().rollback(); |
| em.close(); |
| } |
| } |
| |
| public void testComplexCycle() { |
| EntityManager em = emf.createEntityManager(); |
| try { |
| EntityE entityE = new EntityE(); |
| entityE.setName("entityE"); |
| entityE.setEntityB(entityB); |
| |
| em.getTransaction().begin(); |
| em.persist(entityE); |
| entityD.setEntityA(entityA); |
| em.persist(entityA); |
| em.getTransaction().commit(); |
| |
| em.getTransaction().begin(); |
| em.remove(entityE); |
| em.remove(entityA); |
| em.getTransaction().commit(); |
| } |
| finally { |
| if (em.getTransaction().isActive()) |
| em.getTransaction().rollback(); |
| em.close(); |
| } |
| } |
| |
| public void testComplexTwoCycles() { |
| EntityManager em = emf.createEntityManager(); |
| try { |
| EntityE entityE = new EntityE(); |
| entityE.setName("entityE"); |
| entityE.setEntityB(entityB); |
| |
| em.getTransaction().begin(); |
| em.persist(entityE); |
| entityD.setEntityA(entityA); |
| entityD.setEntityB(entityB); |
| em.persist(entityA); |
| em.getTransaction().commit(); |
| |
| em.getTransaction().begin(); |
| em.remove(entityE); |
| em.remove(entityA); |
| em.getTransaction().commit(); |
| } |
| finally { |
| if (em.getTransaction().isActive()) |
| em.getTransaction().rollback(); |
| em.close(); |
| } |
| } |
| |
| public void testForeignKeyCascade() { |
| EntityManager em = emf.createEntityManager(); |
| try { |
| EntityF f = new EntityF(); |
| f.setId(1); |
| |
| List<EntityG> listG = new ArrayList<EntityG>(); |
| EntityG g1 = new EntityG(); |
| g1.setId(1); |
| listG.add(g1); |
| g1.setEntityF(f); |
| |
| EntityG g2 = new EntityG(); |
| g2.setId(2); |
| listG.add(g2); |
| g2.setEntityF(f); |
| |
| EntityG g3 = new EntityG(); |
| g3.setId(3); |
| listG.add(g3); |
| g3.setEntityF(f); |
| |
| EntityG g4 = new EntityG(); |
| g4.setId(4); |
| listG.add(g4); |
| g4.setEntityF(f); |
| |
| f.setListG(listG); |
| em.getTransaction().begin(); |
| em.persist(f); |
| em.persist(g1); |
| em.persist(g2); |
| em.persist(g3); |
| em.persist(g4); |
| em.getTransaction().commit(); |
| |
| em.getTransaction().begin(); |
| em.remove(f); |
| em.getTransaction().commit(); |
| } |
| catch (Exception e) { |
| fail("Fail to delete EntityF"); |
| } |
| finally { |
| if (em.getTransaction().isActive()) |
| em.getTransaction().rollback(); |
| em.close(); |
| } |
| } |
| |
| } |