| /* |
| * 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.kernel; |
| |
| import java.util.Collection; |
| |
| import org.apache.openjpa.meta.FetchGroup; |
| import org.apache.openjpa.persistence.FetchPlan; |
| import org.apache.openjpa.persistence.OpenJPAEntityManager; |
| import org.apache.openjpa.persistence.kernel.common.apps.FetchA; |
| import org.apache.openjpa.persistence.kernel.common.apps.FetchB; |
| import org.apache.openjpa.persistence.kernel.common.apps.FetchBase; |
| import org.apache.openjpa.persistence.test.SingleEMFTestCase; |
| |
| /** |
| * Tests behavior of FetchPlan constructed dynamically by adding fields. |
| * |
| * Originally reported by Michael Vorburger in |
| * <A HREF="http://n2.nabble.com/Fetch-Group-questions-tc534861.html">OpenJPA |
| * user group</A> |
| * |
| * @author Pinaki Poddar |
| * |
| */ |
| public class TestDynamicFetchPlan extends SingleEMFTestCase { |
| private static final String JPQL = "select a from FetchA a"; |
| |
| @Override |
| public void setUp() { |
| super.setUp(CLEAR_TABLES, FetchBase.class, FetchA.class, FetchB.class); |
| createData(); |
| } |
| |
| public void createData() { |
| OpenJPAEntityManager em = emf.createEntityManager(); |
| em.getTransaction().begin(); |
| FetchA a1 = new FetchA(); |
| a1.setText("a1"); |
| FetchB b1 = new FetchB(); |
| b1.setText("b1"); |
| a1.setB(b1); |
| em.persist(a1); |
| em.persist(b1); |
| em.getTransaction().commit(); |
| } |
| |
| public void testFetchBySubClassFieldB() { |
| OpenJPAEntityManager em = emf.createEntityManager(); |
| FetchPlan fp = em.getFetchPlan(); |
| fp.setExtendedPathLookup(true); |
| fp.clearFetchGroups().removeFetchGroup(FetchGroup.NAME_DEFAULT); |
| fp.clearFields(); |
| fp.addField(FetchA.class, "b"); |
| fp.addField(FetchB.class, "text"); |
| |
| FetchA a = (FetchA) em.createQuery(JPQL).getSingleResult(); |
| em.close(); |
| |
| FetchB b = a.getB(); |
| assertNotNull(b); |
| assertNull(a.getText()); |
| assertEquals("b1", b.getText()); |
| } |
| |
| public void testFetchBySubClassFieldA() { |
| OpenJPAEntityManager em = emf.createEntityManager(); |
| FetchPlan fp = em.getFetchPlan(); |
| fp.setExtendedPathLookup(true); |
| fp.clearFetchGroups().removeFetchGroup(FetchGroup.NAME_DEFAULT); |
| fp.clearFields(); |
| fp.addField(FetchA.class, "b"); |
| fp.addField(FetchA.class, "text"); |
| |
| FetchA a = (FetchA) em.createQuery(JPQL).getSingleResult(); |
| em.close(); |
| |
| FetchB b = a.getB(); |
| assertNotNull(b); |
| assertEquals("a1", a.getText()); |
| assertNull(b.getText()); |
| } |
| |
| public void testFetchBySuperClassField() { |
| OpenJPAEntityManager em = emf.createEntityManager(); |
| FetchPlan fp = em.getFetchPlan(); |
| fp.setExtendedPathLookup(true); |
| fp.clearFetchGroups().removeFetchGroup(FetchGroup.NAME_DEFAULT); |
| fp.clearFields(); |
| fp.addField(FetchA.class, "b"); |
| fp.addField(FetchBase.class, "text"); |
| |
| FetchA a = (FetchA) em.createQuery(JPQL).getSingleResult(); |
| em.close(); |
| |
| FetchB b = a.getB(); |
| assertNotNull(b); |
| assertEquals("a1", a.getText()); |
| assertEquals("b1", b.getText()); |
| } |
| |
| public void testFetchBySubClassFieldNameB() { |
| OpenJPAEntityManager em = emf.createEntityManager(); |
| FetchPlan fp = em.getFetchPlan(); |
| fp.setExtendedPathLookup(true); |
| fp.clearFetchGroups().removeFetchGroup(FetchGroup.NAME_DEFAULT); |
| fp.clearFields(); |
| fp.addField(FetchA.class.getName() + ".b"); |
| fp.addField(FetchB.class.getName() + ".text"); |
| |
| FetchA a = (FetchA) em.createQuery(JPQL).getSingleResult(); |
| em.close(); |
| |
| FetchB b = a.getB(); |
| assertNotNull(b); |
| assertNull(a.getText()); |
| assertEquals("b1", b.getText()); |
| } |
| |
| public void testFetchBySubClassFieldNameA() { |
| OpenJPAEntityManager em = emf.createEntityManager(); |
| FetchPlan fp = em.getFetchPlan(); |
| fp.setExtendedPathLookup(true); |
| fp.clearFetchGroups().removeFetchGroup(FetchGroup.NAME_DEFAULT); |
| fp.clearFields(); |
| fp.addField(FetchA.class.getName() + ".b"); |
| fp.addField(FetchA.class.getName() + ".text"); |
| |
| FetchA a = (FetchA) em.createQuery(JPQL).getSingleResult(); |
| em.close(); |
| |
| FetchB b = a.getB(); |
| assertNotNull(b); |
| assertEquals("a1", a.getText()); |
| assertNull(b.getText()); |
| } |
| |
| public void testFetchBySuperClassFieldName() { |
| OpenJPAEntityManager em = emf.createEntityManager(); |
| FetchPlan fp = em.getFetchPlan(); |
| fp.setExtendedPathLookup(true); |
| fp.clearFetchGroups().removeFetchGroup(FetchGroup.NAME_DEFAULT); |
| fp.clearFields(); |
| fp.addField(FetchA.class.getName() + ".b"); |
| fp.addField(FetchBase.class.getName() + ".text"); |
| |
| FetchA a = (FetchA) em.createQuery(JPQL).getSingleResult(); |
| em.close(); |
| |
| FetchB b = a.getB(); |
| assertNotNull(b); |
| assertEquals("a1", a.getText()); |
| assertEquals("b1", b.getText()); |
| } |
| |
| // OPENJPA-2413: FetchPlan.clearFetchGroups() does not retain "default" in list of active Fetch Groups. |
| public void testClearFetchPlan() { |
| OpenJPAEntityManager em = emf.createEntityManager(); |
| FetchPlan fp = em.getFetchPlan(); |
| |
| // Make sure "default" is present in the list of active FetchGroups |
| Collection<String> fetchGroups = fp.getFetchGroups(); |
| assertNotNull(fetchGroups); |
| assertTrue(fetchGroups.contains(FetchGroup.NAME_DEFAULT)); |
| |
| // Clear all active FetchGroups, only "default" should remain. |
| fp.clearFetchGroups(); |
| Collection<String> fetchGroupsAfterClear = fp.getFetchGroups(); |
| assertNotNull(fetchGroupsAfterClear); |
| assertTrue(fetchGroupsAfterClear.contains(FetchGroup.NAME_DEFAULT)); |
| |
| // Should still be able to remove the "default" FetchGroup |
| fp.removeFetchGroup(FetchGroup.NAME_DEFAULT); |
| Collection<String> fetchGroupsAfterRemove = fp.getFetchGroups(); |
| assertNotNull(fetchGroupsAfterClear); |
| assertTrue(fetchGroupsAfterClear.isEmpty()); |
| } |
| } |