| /* |
| * 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.jdbc.query; |
| |
| import java.util.List; |
| |
| import javax.persistence.EntityManager; |
| import javax.persistence.Query; |
| |
| import org.apache.openjpa.persistence.jdbc.query.domain.Application; |
| import org.apache.openjpa.persistence.jdbc.query.domain.Applicant; |
| import org.apache.openjpa.persistence.test.SingleEMFTestCase; |
| |
| /** |
| * Tests that update query can set single-valued association field to non-null |
| * or null values. |
| * |
| * Originally reported in |
| * <A HRE="http://issues.apache.org/jira/browse/OPENJPA-533>OPENJPA-533</A> |
| * |
| * @author Pinaki Poddar |
| * |
| */ |
| public class TestUpdateSingleValuedAssociation extends SingleEMFTestCase { |
| private static boolean MUST_BE_NULL = true; |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(CLEAR_TABLES, Application.class, Applicant.class); |
| } |
| |
| public void testUpdateSingleValuedAssociationToNullViaParameter() { |
| createApplicationWithNonNullApplicant(); |
| assertUserNullity(!MUST_BE_NULL); |
| |
| String jpql = "UPDATE Application a SET a.user = :user"; |
| updateByQuery(jpql, "user", null); |
| |
| assertUserNullity(MUST_BE_NULL); |
| } |
| |
| public void testUpdateSingleValuedAssociationToNullViaLiteral() { |
| createApplicationWithNonNullApplicant(); |
| assertUserNullity(!MUST_BE_NULL); |
| |
| String jpql = "UPDATE Application a SET a.user = NULL"; |
| updateByQuery(jpql); |
| |
| assertUserNullity(MUST_BE_NULL); |
| } |
| |
| public void testUpdateSingleValuedAssociationToNonNullViaParameter() { |
| Application pc = createApplicationWithNullApplicant(); |
| assertNull(pc.getUser()); |
| |
| String jpql = "UPDATE Application a SET a.user = :user"; |
| Applicant newUser = createApplicant(); |
| updateByQuery(jpql, "user", newUser); |
| |
| assertUserNullity(!MUST_BE_NULL); |
| } |
| |
| void assertUserNullity(boolean shouldBeNull) { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| List<Application> result = |
| em.createQuery("SELECT a FROM Application a").getResultList(); |
| assertFalse(result.isEmpty()); |
| for (Application pc : result) { |
| Applicant user = pc.getUser(); |
| if (shouldBeNull) |
| assertNull(user); |
| else |
| assertNotNull(user); |
| } |
| em.getTransaction().rollback(); |
| } |
| |
| Application createApplicationWithNonNullApplicant() { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| Application app = new Application(); |
| Applicant user = new Applicant(); |
| user.setName("Non-Null User"); |
| app.setUser(user); |
| em.persist(app); |
| em.persist(user); |
| em.getTransaction().commit(); |
| return app; |
| } |
| |
| Application createApplicationWithNullApplicant() { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| Application app = new Application(); |
| em.persist(app); |
| em.getTransaction().commit(); |
| return app; |
| } |
| |
| Applicant createApplicant() { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| Applicant user = new Applicant(); |
| user.setName("Non-Null User"); |
| em.persist(user); |
| em.getTransaction().commit(); |
| return user; |
| } |
| |
| public void updateByQuery(String jpql, Object...params) { |
| EntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| Query query = em.createQuery(jpql); |
| for (int i=0; params != null && i<params.length; i=+2) { |
| query.setParameter(params[i].toString(), params[i+1]); |
| } |
| query.executeUpdate(); |
| em.getTransaction().commit(); |
| } |
| } |