/*

  * 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 javax.faces.view;

 import javax.faces.component.UIComponent;

 import javax.faces.context.FacesContext;

 /**

  * The abstract base interface for a handler representing an <em>attached object</em> in a PDL page. Subinterfaces are

  * provided for the common attached objects that expose {@link javax.faces.convert.Converter Converter},

  * {@link javax.faces.validator.Validator Validator}, {@link javax.faces.event.ValueChangeEvent ValueChangeEvent}, and

  * {@link javax.faces.event.ActionListener ActionListener} for use by <em>page authors</em>.

  * 

  * @since 2.0

  */

 public interface AttachedObjectHandler

 {

     /**

      * Take the argument <code>parent</code> and apply this attached <code>object</code> to it. The action taken varies

      * with class that implements one of the subinterfaces of this interface.

      * 

      * @param context

      *            The <code>FacesContext</code> for this request

      * @param parent

      *            The <code>UIComponent</code> to which this particular attached object must be applied.

      */

     public void applyAttachedObject(FacesContext context, UIComponent parent);

     /**

      * Return the value of the "for" attribute specified by the <em>page author</em> on the tag for this

      * <code>AttachedObjectHandler</code>.

      * 

      * @return the value of the "for" attribute specified by the <em>page author</em> on the tag for this

      *         <code>AttachedObjectHandler</code>.

      */

     public String getFor();

 }