/* | |
* 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 | |
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*/ | |
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(); | |
} | |
} |