| /* |
| * 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.events; |
| |
| import org.eclipse.persistence.testing.models.employee.domain.*; |
| import org.eclipse.persistence.expressions.*; |
| import org.eclipse.persistence.sessions.*; |
| import org.eclipse.persistence.descriptors.DescriptorEventAdapter; |
| import org.eclipse.persistence.descriptors.DescriptorEvent; |
| import org.eclipse.persistence.testing.framework.*; |
| |
| /** |
| * Added for Bug 2916836 |
| * Test to ensure changes made to change sets on in preWrite events |
| * for Insert queries are reflected in the cache. |
| */ |
| public class PreInsertModifyChangeSetTest extends AutoVerifyTestCase { |
| protected static int callCount = 0; |
| protected Employee employee = null; |
| |
| // The following is an anonymous class which is used for event listening |
| // uses the preInsert event to change a change set. |
| protected DescriptorEventAdapter eventAdapter = new DescriptorEventAdapter() { |
| @Override |
| public void preInsert(DescriptorEvent event) { |
| if (event.getQuery().getDescriptor() != null) { |
| event.updateAttributeWithObject("salary", callCount); |
| ++callCount; |
| } |
| } |
| }; |
| |
| public PreInsertModifyChangeSetTest() { |
| setDescription("Test to ensure change sets modified by events actually affect the cache."); |
| } |
| |
| @Override |
| public void setup() { |
| getSession().getDescriptor(Employee.class).getEventManager().addListener(eventAdapter); |
| beginTransaction(); |
| } |
| |
| @Override |
| public void test() { |
| // Create an employee. This employee's last name will be modifed in a preWrite evetn |
| employee = new Employee(); |
| employee.setFirstName("Homer"); |
| employee.setLastName("Sampson"); |
| employee.setSalary(200000); |
| UnitOfWork uow = getSession().acquireUnitOfWork(); |
| uow.registerObject(employee); |
| uow.commit(); |
| } |
| |
| @Override |
| public void verify() { |
| ExpressionBuilder emp = new ExpressionBuilder(); |
| Expression exp = emp.get("id").equal(employee.getId()); |
| Employee result = (Employee)getSession().readObject(Employee.class, exp); |
| |
| // verify the modified salary appears. |
| if (result.getSalary() == 200000) { |
| throw new TestErrorException("Update of change set in preInsert event did not correctly change the cache."); |
| } |
| if (result.getSalary() != 0) { |
| throw new TestErrorException("preInsert Called multiple times for same object"); |
| } |
| callCount = 0; |
| } |
| |
| @Override |
| public void reset() { |
| rollbackTransaction(); |
| getSession().getDescriptor(Employee.class).getEventManager().removeListener(eventAdapter); |
| } |
| } |