| /* |
| * 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.query; |
| |
| import java.util.List; |
| |
| import javax.persistence.EntityManager; |
| |
| import org.apache.openjpa.persistence.jdbc.common.apps. |
| UnidirectionalOneToOneOwned; |
| import org.apache.openjpa.persistence.jdbc.common.apps. |
| UnidirectionalOneToOneOwner; |
| import org.apache.openjpa.persistence.test.SingleEMFTestCase; |
| |
| |
| /** |
| * The query uses projection and result contains the same instance once as |
| * a direct projection and again as a fetch group of the other projection. |
| * Does the query return two separate instances or one identical instance? |
| * |
| * Originally reported as two different failures: |
| * <A HREF="https://issues.apache.org/jira/browse/OPENJPA-209">OPENJPA-209</A> |
| * <A HREF="https://issues.apache.org/jira/browse/OPENJPA-210">OPENJPA-210</A> |
| * |
| * @author Pinaki Poddar |
| */ |
| public class TestProjectionQueryWithIdenticalResult extends SingleEMFTestCase { |
| private static boolean USE_TXN = true; |
| @Override |
| public void setUp() { |
| setUp(CLEAR_TABLES, |
| UnidirectionalOneToOneOwned.class, |
| UnidirectionalOneToOneOwner.class); |
| |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| UnidirectionalOneToOneOwner owner = new UnidirectionalOneToOneOwner(); |
| owner.setMarker("Owner"); |
| UnidirectionalOneToOneOwned owned = new UnidirectionalOneToOneOwned(); |
| owned.setMarker("Owned"); |
| owner.setOwned(owned); |
| em.persist(owner); |
| em.getTransaction().commit(); |
| em.close(); |
| } |
| |
| public void testDuplicateResultInProjection1() { |
| String jpql = "SELECT p.owned, p FROM UnidirectionalOneToOneOwner p"; |
| List<Object[]> result = executeQuery(jpql, USE_TXN); |
| for (Object[] row : result) { |
| assertTrue(row[0] instanceof UnidirectionalOneToOneOwned); |
| assertTrue(row[1] instanceof UnidirectionalOneToOneOwner); |
| assertTrue(((UnidirectionalOneToOneOwner)row[1]).getOwned() == |
| row[0]); |
| } |
| } |
| |
| public void testDuplicateResultInProjection2() { |
| String jpql = "SELECT p, p.owned FROM UnidirectionalOneToOneOwner p"; |
| List<Object[]> result = executeQuery(jpql, USE_TXN); |
| for (Object[] row : result) { |
| assertTrue(row[1] instanceof UnidirectionalOneToOneOwned); |
| assertTrue(row[0] instanceof UnidirectionalOneToOneOwner); |
| assertTrue(((UnidirectionalOneToOneOwner)row[0]).getOwned() == |
| row[1]); |
| } |
| } |
| |
| public void testDuplicateResultInProjection3() { |
| String jpql = "SELECT p, q FROM UnidirectionalOneToOneOwner p, " + |
| "UnidirectionalOneToOneOwned q WHERE p.owned = q"; |
| List<Object[]> result = executeQuery(jpql, USE_TXN); |
| for (Object[] row : result) { |
| assertTrue(row[0] instanceof UnidirectionalOneToOneOwner); |
| assertTrue(row[1] instanceof UnidirectionalOneToOneOwned); |
| assertTrue(((UnidirectionalOneToOneOwner)row[0]).getOwned() == |
| row[1]); |
| } |
| } |
| |
| public void testDuplicateResultInProjection4() { |
| String jpql = "SELECT q, p FROM UnidirectionalOneToOneOwner p, " + |
| "UnidirectionalOneToOneOwned q WHERE p.owned = q"; |
| List<Object[]> result = executeQuery(jpql, USE_TXN); |
| for (Object[] row : result) { |
| assertTrue(row[0] instanceof UnidirectionalOneToOneOwned); |
| assertTrue(row[1] instanceof UnidirectionalOneToOneOwner); |
| assertTrue(((UnidirectionalOneToOneOwner)row[1]).getOwned()== |
| row[0]); |
| } |
| } |
| |
| private List executeQuery(String jpql, boolean useTxn) { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| List result = em.createQuery(jpql).getResultList(); |
| em.getTransaction().rollback(); |
| return result; |
| } |
| } |