| /* |
| * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.testing.tests.mapping; |
| |
| import java.math.*; |
| |
| import org.eclipse.persistence.descriptors.ClassDescriptor; |
| import org.eclipse.persistence.testing.framework.*; |
| import org.eclipse.persistence.mappings.*; |
| import org.eclipse.persistence.sessions.*; |
| import org.eclipse.persistence.expressions.*; |
| import org.eclipse.persistence.testing.models.mapping.Baby; |
| import org.eclipse.persistence.testing.models.mapping.BabyMonitor; |
| import org.eclipse.persistence.testing.models.mapping.Crib; |
| |
| /** |
| * Bug 3142898 - Ensure joining works to multiple levels |
| */ |
| public class TwoLevelJoinedAttributeTest extends AutoVerifyTestCase { |
| protected int cribMonitorUseJoining; |
| protected int babyCribUseJoining; |
| protected BigDecimal babyId = null; |
| protected Baby baby = null; |
| |
| public TwoLevelJoinedAttributeTest() { |
| setDescription("Ensure objects that use joining to two levels execute join queries properly."); |
| } |
| |
| @Override |
| public void setup() { |
| beginTransaction(); |
| // populate the database |
| UnitOfWork uow = getSession().acquireUnitOfWork(); |
| |
| Baby populationBaby = new Baby(); |
| populationBaby.setName("Bobby"); |
| |
| BabyMonitor monitor = new BabyMonitor(); |
| monitor.setBrandName("Nokia"); |
| monitor.setBaby(populationBaby); |
| |
| Crib crib = new Crib(); |
| crib.setColor("yellow"); |
| crib.setBabyMonitor(monitor); |
| crib.setBaby(populationBaby); |
| |
| monitor.setCrib(crib); |
| |
| populationBaby.setBabyMonitor(monitor); |
| populationBaby.setCrib(crib); |
| |
| uow.registerObject(populationBaby); |
| |
| uow.commit(); |
| |
| babyId = populationBaby.getId(); |
| |
| getSession().getIdentityMapAccessor().initializeIdentityMaps(); |
| // set joining behavior so baby is joined to crib and crib is joined to baby monitor |
| ClassDescriptor descriptor = getSession().getClassDescriptor(Baby.class); |
| babyCribUseJoining = ((OneToOneMapping)descriptor.getMappingForAttributeName("crib")).getJoinFetch(); |
| ((OneToOneMapping)descriptor.getMappingForAttributeName("crib")).useInnerJoinFetch(); |
| descriptor.reInitializeJoinedAttributes(); |
| descriptor = getSession().getClassDescriptor(Crib.class); |
| cribMonitorUseJoining = ((OneToOneMapping)descriptor.getMappingForAttributeName("babyMonitor")).getJoinFetch(); |
| ((OneToOneMapping)descriptor.getMappingForAttributeName("babyMonitor")).useInnerJoinFetch(); |
| descriptor.reInitializeJoinedAttributes(); |
| } |
| |
| @Override |
| public void test() { |
| // read a baby |
| ExpressionBuilder babys = new ExpressionBuilder(); |
| Expression expression = babys.get("id").equal(babyId); |
| baby = (Baby)getSession().readObject(Baby.class, expression); |
| } |
| |
| @Override |
| public void verify() { |
| // Since we are using joining, all attributes should be properly populated. |
| if ((baby.getCrib() == null) || (baby.getCrib().getBabyMonitor() == null)) { |
| throw new TestErrorException("TopLink did not properly process multiple levels of joining within " + " descriptors."); |
| } |
| } |
| |
| @Override |
| public void reset() { |
| rollbackTransaction(); |
| getSession().getIdentityMapAccessor().initializeIdentityMaps(); |
| ClassDescriptor descriptor = getSession().getClassDescriptor(Baby.class); |
| ((OneToOneMapping)descriptor.getMappingForAttributeName("crib")).setJoinFetch(babyCribUseJoining); |
| descriptor.reInitializeJoinedAttributes(); |
| descriptor = getSession().getClassDescriptor(Crib.class); |
| ((OneToOneMapping)descriptor.getMappingForAttributeName("babyMonitor")).setJoinFetch(cribMonitorUseJoining); |
| descriptor.reInitializeJoinedAttributes(); |
| } |
| } |