| /* |
| * 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.queries; |
| |
| import java.util.*; |
| |
| import org.eclipse.persistence.descriptors.*; |
| import org.eclipse.persistence.expressions.*; |
| import org.eclipse.persistence.mappings.*; |
| import org.eclipse.persistence.descriptors.ClassDescriptor; |
| import org.eclipse.persistence.queries.*; |
| import org.eclipse.persistence.sessions.*; |
| import org.eclipse.persistence.exceptions.*; |
| |
| import org.eclipse.persistence.testing.models.employee.domain.*; |
| import org.eclipse.persistence.testing.framework.*; |
| |
| /** |
| * Tests fine-grained / descriptor level pessimistic locking in an |
| * inheritance hierarchy. |
| * <p> |
| * Query on a large project, where the team leader attribute is joined, and |
| * project alone is configured on the descriptor for pessimistic locking. |
| * A subsequent attempt to read the project should fail, but not to lock the |
| * employee. |
| */ |
| public class PessimisticLockInheritanceTest extends TestCase { |
| public UnitOfWork uow; |
| public short lockMode; |
| CMPPolicy oldCMPPolicy; |
| |
| /** |
| * PessimisticLockInheritanceTest constructor comment. |
| */ |
| public PessimisticLockInheritanceTest(short lockMode) { |
| this.lockMode = lockMode; |
| setName(getName() + "(mode=" + lockMode + ")"); |
| setDescription("This test verifies the pessimistic locking feature works properly when set on the descriptor and inheritance is involved."); |
| } |
| |
| @Override |
| protected void setup() { |
| getSession().getIdentityMapAccessor().initializeIdentityMaps(); |
| ClassDescriptor projectDescriptor = getSession().getDescriptor(org.eclipse.persistence.testing.models.employee.domain.Project.class); |
| ClassDescriptor largeProjectDescriptor = getSession().getDescriptor(LargeProject.class); |
| ClassDescriptor smallProjectDescriptor = getSession().getDescriptor(SmallProject.class); |
| |
| CMPPolicy cmpPolicy = new CMPPolicy(); |
| PessimisticLockingPolicy policy = new PessimisticLockingPolicy(); |
| policy.setLockingMode(this.lockMode); |
| |
| cmpPolicy.setPessimisticLockingPolicy(policy); |
| oldCMPPolicy = projectDescriptor.getCMPPolicy(); |
| projectDescriptor.setCMPPolicy(cmpPolicy); |
| projectDescriptor.getQueryManager().getReadObjectQuery().setLockMode(ObjectLevelReadQuery.DEFAULT_LOCK_MODE); |
| ((ObjectLevelReadQuery)((ForeignReferenceMapping)projectDescriptor.getMappingForAttributeName("teamLeader")).getSelectionQuery()).setLockMode(ObjectLevelReadQuery.DEFAULT_LOCK_MODE); |
| ClassDescriptor employeeDescriptor = getSession().getDescriptor(Employee.class); |
| ((ObjectLevelReadQuery)((ForeignReferenceMapping)employeeDescriptor.getMappingForAttributeName("projects")).getSelectionQuery()).setLockMode(ObjectLevelReadQuery.DEFAULT_LOCK_MODE); |
| largeProjectDescriptor.setCMPPolicy(cmpPolicy); |
| largeProjectDescriptor.getQueryManager().getReadObjectQuery().setLockMode(ObjectLevelReadQuery.DEFAULT_LOCK_MODE); |
| smallProjectDescriptor.setCMPPolicy(cmpPolicy); |
| smallProjectDescriptor.getQueryManager().getReadObjectQuery().setLockMode(ObjectLevelReadQuery.DEFAULT_LOCK_MODE); |
| } |
| |
| @Override |
| public void reset() { |
| getSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| if (uow != null) { |
| uow.release(); |
| } |
| ClassDescriptor projectDescriptor = getSession().getDescriptor(org.eclipse.persistence.testing.models.employee.domain.Project.class); |
| ClassDescriptor largeProjectDescriptor = getSession().getDescriptor(LargeProject.class); |
| ClassDescriptor smallProjectDescriptor = getSession().getDescriptor(SmallProject.class); |
| projectDescriptor.setCMPPolicy(oldCMPPolicy); |
| ((ObjectLevelReadQuery)((ForeignReferenceMapping)projectDescriptor.getMappingForAttributeName("teamLeader")).getSelectionQuery()).setLockMode(ObjectLevelReadQuery.DEFAULT_LOCK_MODE); |
| ((ObjectLevelReadQuery)((ForeignReferenceMapping)projectDescriptor.getMappingForAttributeName("teamLeader")).getSelectionQuery()).dontRefreshIdentityMapResult(); |
| ClassDescriptor employeeDescriptor = getSession().getDescriptor(Employee.class); |
| ((ObjectLevelReadQuery)((ForeignReferenceMapping)employeeDescriptor.getMappingForAttributeName("projects")).getSelectionQuery()).setLockMode(ObjectLevelReadQuery.DEFAULT_LOCK_MODE); |
| ((ObjectLevelReadQuery)((ForeignReferenceMapping)employeeDescriptor.getMappingForAttributeName("projects")).getSelectionQuery()).dontRefreshIdentityMapResult(); |
| largeProjectDescriptor.setCMPPolicy(oldCMPPolicy); |
| smallProjectDescriptor.setCMPPolicy(oldCMPPolicy); |
| } |
| |
| @Override |
| public void test() throws Exception { |
| checkSelectForUpateSupported(); |
| |
| if (this.lockMode == ObjectLevelReadQuery.LOCK_NOWAIT) { |
| checkNoWaitSupported(); |
| } |
| |
| uow = getSession().acquireUnitOfWork(); |
| |
| ReadObjectQuery query = new ReadObjectQuery(LargeProject.class); |
| |
| // Only Charles Chanley and John Way are team leaders of projects they are also working on. |
| Expression expression = query.getExpressionBuilder().get("teamLeader").get("firstName").equal("Charles"); |
| query.setSelectionCriteria(expression); |
| query.addJoinedAttribute("teamLeader"); |
| |
| Object result = uow.executeQuery(query); |
| |
| // Now trigger the valueholder... |
| ((LargeProject)result).getTeamLeader(); |
| |
| ReadObjectQuery cacheQuery = new ReadObjectQuery(org.eclipse.persistence.testing.models.employee.domain.Project.class); |
| cacheQuery.checkCacheOnly(); |
| Object cachedObject = uow.executeQuery(cacheQuery); |
| if (result != cachedObject) { |
| throw new TestErrorException("Did not get a cache hit when using pessimistic locking."); |
| } |
| cacheQuery = new ReadObjectQuery(Employee.class); |
| cacheQuery.checkCacheOnly(); |
| cachedObject = uow.executeQuery(cacheQuery); |
| if (((LargeProject)result).getTeamLeader() != cachedObject) { |
| throw new TestErrorException("Did not get a cache hit after pessimisticly locking a joined attribute."); |
| } |
| Vector projects = ((Employee)cachedObject).getProjects(); |
| |
| // Test the lock. |
| DatabaseSession session2 = null; |
| UnitOfWork uow2 = null; |
| try { |
| if (getSession() instanceof org.eclipse.persistence.sessions.remote.RemoteSession) { |
| session2 = org.eclipse.persistence.testing.tests.remote.RemoteModel.getServerSession().getProject().createDatabaseSession(); |
| } else { |
| session2 = getSession().getProject().createDatabaseSession(); |
| } |
| session2.setLog(getSession().getLog()); |
| session2.setLogLevel(getSession().getLogLevel()); |
| session2.login(); |
| uow2 = session2.acquireUnitOfWork(); |
| boolean isLocked = false; |
| query = new ReadObjectQuery(Employee.class); |
| expression = query.getExpressionBuilder().get("firstName").equal("Charles"); |
| query.setSelectionCriteria(expression); |
| Employee result2 = (Employee)uow2.executeQuery(query); |
| if (result2 == null) { |
| throw new TestErrorException("A joined attribute was mistakenly locked pessimistically."); |
| } |
| projects = null; |
| try { |
| projects = result2.getProjects(); |
| } catch (EclipseLinkException exeception) { |
| session2.logMessage(exeception.toString()); |
| isLocked = true; |
| } |
| if (projects == null) { |
| isLocked = true; |
| } |
| if (!isLocked) { |
| throw new TestErrorException("Select for update does not acquire a lock"); |
| } |
| } catch (RuntimeException e) { |
| throw e; |
| } finally { |
| if (uow2 != null) { |
| uow2.release(); |
| } |
| if (session2 != null) { |
| session2.logout(); |
| } |
| } |
| } |
| } |