| /******************************************************************************* |
| * Copyright (c) 1998, 2013 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 v1.0 and Eclipse Distribution License v. 1.0 |
| * which accompanies this distribution. |
| * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html |
| * and the Eclipse Distribution License is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * Contributors: |
| * dminsky - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.persistence.testing.tests.optimisticlocking; |
| |
| import org.eclipse.persistence.testing.framework.*; |
| import org.eclipse.persistence.testing.models.optimisticlocking.Camera; |
| |
| import org.eclipse.persistence.expressions.ExpressionBuilder; |
| import org.eclipse.persistence.sessions.UnitOfWork; |
| |
| /** |
| * Test updating a value from a null DB value to a non-null value and back again. |
| * EL bug 319759 |
| * @author dminsky |
| */ |
| public class UpdateNullDirectToFieldValueTest extends SwitchableOptimisticLockingPolicyTest { |
| |
| protected Camera original; |
| protected Camera original2; |
| |
| public UpdateNullDirectToFieldValueTest(Class optimisticLockingPolicyClass) { |
| super(optimisticLockingPolicyClass); |
| addClassToModify(Camera.class); |
| } |
| |
| public void setup() { |
| super.setup(); |
| UnitOfWork uow = getSession().acquireUnitOfWork(); |
| original = new Camera(); |
| original.setName(null); |
| |
| original2 = new Camera(); |
| original2.setName("LookyHere"); |
| |
| uow.registerObject(original); |
| uow.registerObject(original2); |
| uow.commit(); |
| } |
| |
| public void test() throws TestException { |
| try { |
| getSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| |
| // update the existing object's attribute |
| readObjectAssertAndChangeAttributeValue(null, "LookyThere"); |
| |
| // update the object's attribute to a null value |
| readObjectAssertAndChangeAttributeValue("LookyThere", null); |
| |
| // update the object's attribute to a different value |
| readObjectAssertAndChangeAttributeValue(null, "DumbCam"); |
| |
| // update the object's attribute to null |
| readObjectAssertAndChangeAttributeValue("DumbCam", null); |
| |
| // delete the object |
| deleteObject(original); |
| deleteObject(original2); |
| } catch (Exception tle) { |
| this.tlException = tle; |
| } |
| } |
| |
| public void readObjectAssertAndChangeAttributeValue(String expectedAttributeValue, String newAttributeValue) { |
| UnitOfWork uow = getSession().acquireUnitOfWork(); |
| Camera clone = (Camera) uow.readObject( |
| Camera.class, |
| new ExpressionBuilder().get("id").equal(this.original.getId())); |
| |
| assertNotNull("The object returned should be not null", clone); |
| assertEquals("The object's field should be [" + expectedAttributeValue + ']', expectedAttributeValue, clone.getName()); |
| |
| clone.setName(newAttributeValue); |
| uow.commit(); |
| } |
| |
| public void reset() { |
| super.reset(); |
| this.original = null; |
| this.original2 = null; |
| } |
| |
| } |