updateevent.java

来自「基于Eclipse RCP开发的管理工具」· Java 代码 · 共 57 行

 /*  
  * Copyright 2006 Marcel Schoffelmeer 
  * 
  * Licensed under the Apache License, Version 2.0 (the "License"); 
  * you may not use this file except in compliance with the License. 
  * You may obtain a copy of the License at 
  * 
  *    http://www.apache.org/licenses/LICENSE-2.0 
  *    
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

package com.s10r.util;

/**
 * Generic model update event for model classes to notify observers of changes.
 * If applicable, the target object property is populated with the object
 * affected (e.g. edit, addition or removal).
 */
public class UpdateEvent
{
	public enum Type
	{
		REMOVE, ADD, EDIT, REMOVE_ALL, ADD_ALL
	};

	private Type type;

	private Object targetObject;

	public UpdateEvent(Type type, Object targetObject)
	{
		this.type = type;
		this.targetObject = targetObject;
	}

	public Object getTargetObject()
	{
		return targetObject;
	}

	public Type getType()
	{
		return type;
	}

	public String toString()
	{
		return "Event(type = " + type + ", targetObject = " + targetObject
				+ ")";
	}
}