| /* |
| * 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: |
| // dminsky - initial API and implementation |
| package org.eclipse.persistence.testing.tests.queries; |
| |
| import java.util.*; |
| |
| import org.eclipse.persistence.internal.databaseaccess.*; |
| import org.eclipse.persistence.descriptors.*; |
| import org.eclipse.persistence.expressions.*; |
| import org.eclipse.persistence.sessions.*; |
| |
| import org.eclipse.persistence.testing.models.employee.domain.*; |
| import org.eclipse.persistence.testing.framework.*; |
| |
| /** |
| * Test to ensure that DescriptorQueryManager's cached update calls do not have their |
| * 'query' reference set. This is to prevent a memory leak from occurring. |
| * @author dminsky |
| */ |
| public class CachedUpdateCallsQueryClearTest extends TestCase { |
| |
| public CachedUpdateCallsQueryClearTest() { |
| setDescription("Test that the DescriptorQueryManager's cached update calls query attribute is de-referenced"); |
| } |
| |
| @Override |
| public void setup() { |
| getDatabaseSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| getDatabaseSession().beginTransaction(); |
| } |
| |
| @Override |
| public void test() { |
| UnitOfWork uow = getDatabaseSession().acquireUnitOfWork(); |
| Employee employee = (Employee) uow.readObject( |
| Employee.class, |
| new ExpressionBuilder().get("lastName").equal("Smitty")); |
| assertNotNull(employee); |
| employee.setLastName("Archibald"); |
| uow.commit(); |
| } |
| |
| @Override |
| public void verify() { |
| ClassDescriptor descriptor = getSession().getDescriptor(Employee.class); |
| DescriptorQueryManager descriptorQueryManager = descriptor.getDescriptorQueryManager(); |
| // in the update transaction in test(), the lastName and the version fields are updated |
| Vector fields = new Vector(2); |
| fields.add(descriptor.getMappingForAttributeName("lastName").getField()); |
| fields.add(descriptor.getOptimisticLockingPolicy().getWriteLockField()); |
| |
| Vector cachedUpdateCalls = descriptorQueryManager.getCachedUpdateCalls(fields); |
| assertNotNull(cachedUpdateCalls); |
| assertFalse(cachedUpdateCalls.isEmpty()); |
| |
| Iterator<DatasourceCall> iterator = cachedUpdateCalls.iterator(); |
| |
| while (iterator.hasNext()) { |
| DatasourceCall call = iterator.next(); |
| // calls should not cache a query |
| if (call.getQuery() != null) { |
| throw new TestErrorException("DatasourceCall's query is not null: " + call); |
| } |
| } |
| } |
| |
| @Override |
| public void reset() { |
| getDatabaseSession().rollbackTransaction(); |
| getDatabaseSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| } |
| |
| } |