/*
 * 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);
    }

}
