/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * 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 javax.faces.event;

 import javax.faces.component.UIComponent;

 /**

  * @author shot

  */

 public class ValueChangeEvent extends FacesEvent {

     private static final long serialVersionUID = 1L;

     private Object oldValue = null;

     private Object newValue = null;

     public ValueChangeEvent(UIComponent component, Object oldValue,

             Object newValue) {

         super(component);

         this.oldValue = oldValue;

         this.newValue = newValue;

     }

     public Object getNewValue() {

         return newValue;

     }

     public Object getOldValue() {

         return oldValue;

     }

     public boolean isAppropriateListener(FacesListener listener) {

         return (listener instanceof ValueChangeListener);

     }

     public void processListener(FacesListener listener) {

         ((ValueChangeListener) listener).processValueChange(this);

     }

 }