| /* |
| * Copyright (c) 1998, 2019 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.descriptors.changetracking; |
| |
| /** |
| * <p> |
| * <b>Purpose</b>: Define a change event for Map types. |
| * <p> |
| * <b>Description</b>: For any object that wishes to use either object change tracking or |
| * attribute change tracking, its map attributes need to fire MapChangeEvent |
| * in the put or remove methods. In the case of a replace (ie key already exists) both |
| * a remove for that key and a put using the new value and old key must be fired. |
| * <p> |
| * <b>Responsibilities</b>: Create a MapChangeEvent for an object |
| */ |
| public class MapChangeEvent extends CollectionChangeEvent { |
| /** |
| * INTERNAL: |
| * The value of the key that was updated. |
| */ |
| protected Object key; |
| |
| /** |
| * PUBLIC: |
| * Create a MapChangeEvent for an object based on the property name, the updated Map, the new Key and the new Value |
| * and change type (add or remove) |
| */ |
| public MapChangeEvent(Object collectionOwner, String propertyName, Object collectionChanged, Object elementKey, Object elementValue, int changeType, boolean isChangeApplied) { |
| super(collectionOwner, propertyName, collectionChanged, elementValue, changeType, isChangeApplied); |
| this.key = elementKey; |
| } |
| |
| /** |
| * INTERNAL: |
| * Return the change type |
| */ |
| public Object getKey() { |
| return key; |
| } |
| |
| /** |
| * INTERNAL: |
| * Set the change type |
| */ |
| public void setKey(Object key) { |
| this.key = key; |
| } |
| } |