/*
* 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.jpql.version;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import javax.persistence.TypedQuery;
import org.apache.openjpa.persistence.test.SingleEMFTestCase;
/**
* Verifies that the version field is returned when part of a join statement.
* See OPENJPA-2343.
*/
public class TestJoinVersionField extends SingleEMFTestCase {
public void setUp(){
setUp(CLEAR_TABLES, Author.class,Document.class);
createTestData();
}
public void testGetDocuments(){
EntityManager em = emf.createEntityManager();
String str = "SELECT doc FROM Document doc JOIN doc.author auth";
TypedQuery<Document> query = em.createQuery(str, Document.class);
List<Document> documentList = query.getResultList();
for (Document doc : documentList) {
assertEquals("Author version field should have a value of 1.",
1, doc.getAuthor().getVersion());
}
em.close();
}
/**
* Prior to OPENJPA-2343, the version field in the Author entity is returned
* as null.
*/
public void testGetDocumentsByExplicitAttributeSelection(){
EntityManager em = emf.createEntityManager();
String str = "SELECT doc.id, auth.id, auth.version FROM Document doc JOIN doc.author auth";
Query query = em.createQuery(str);
List<Object[]> objectList = query.getResultList();
for (Object[] objects : objectList) {
assertEquals("Author version field should have a value of 1.",1,objects[2]);
}
}
public void createTestData() {
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
Author author = new Author();
author.setId(10);
em.persist(author);
Document document = new Document();
document.setId(2);
document.setAuthor(author);
em.persist(document);
em.getTransaction().commit();
em.close();
}
}