/*

  * Licensed to the Apache Software Foundation (ASF) under one

  * or more contributor license agreements.  See the NOTICE file

  * distributed with this work for additional information

  * regarding copyright ownership.  The ASF licenses this file

  * to you 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 org.apache.myfaces.taglib.core;

 import javax.el.ValueExpression;

 import javax.faces.component.EditableValueHolder;

 import javax.faces.event.ValueChangeListener;

 import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFJspAttribute;

 import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFJspTag;

 /**

  * Adds the specified ValueChangeListener to the nearest parent UIComponent (which is expected to be a UIInput

  * component).

  * <p>

  * Whenever the form containing the parent UIComponent is submitted, an instance of the specified type is created. If

  * the submitted value from the component is different from the component's current value then a ValueChangeEvent is

  * queued. When the ValueChangeEvent is processed (at end of the validate phase for non-immediate components, or at end

  * of the apply-request-values phase for immediate components) the object's processValueChange method is invoked.

  * </p>

  * <p>

  * Unless otherwise specified, all attributes accept static values or EL expressions.

  * </p>

  * 

  * @author Manfred Geiler (latest modification by $Author$)

  * @version $Revision$ $Date$

  */

 @JSFJspTag(name = "f:valueChangeListener", bodyContent = "empty")

 public class ValueChangeListenerTag extends GenericListenerTag<EditableValueHolder, ValueChangeListener>

 {

     private static final long serialVersionUID = 2155190261951046892L;

     public ValueChangeListenerTag()

     {

         super(EditableValueHolder.class);

     }

     @Override

     protected void addListener(EditableValueHolder editableValueHolder, ValueChangeListener valueChangeListener)

     {

         editableValueHolder.addValueChangeListener(valueChangeListener);

     }

     @Override

     protected ValueChangeListener createDelegateListener(ValueExpression type, ValueExpression binding)

     {

         return new DelegateValueChangeListener(type, binding);

     }

     /**

      * The name of a Java class that implements ValueChangeListener.

      */

     @Override

     @JSFJspAttribute(className="javax.el.ValueExpression",

             deferredValueType="java.lang.String")

     public void setType(ValueExpression type)

     {

         super.setType(type);

     }

     /**

      * Value binding expression that evaluates to an implementation of the javax.faces.event.ValueChangeListener

      * interface.

      */

     @Override

     @JSFJspAttribute(className="javax.el.ValueExpression",

             deferredValueType="javax.faces.event.ValueChangeListener")

     public void setBinding(ValueExpression binding)

     {

         super.setBinding(binding);

     }

 }