/*

  * 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.facelets;

 import java.io.IOException;

 import javax.el.ELException;

 import javax.faces.FacesException;

 import javax.faces.component.UIComponent;

 import javax.faces.context.FacesContext;

 /**

  * The parent or root object in a FaceletHandler composition. The Facelet will take care of populating the passed

  * UIComponent parent in relation to the create/restore lifecycle of JSF.

  */

 public abstract class Facelet

 {

     /**

      * The passed UIComponent parent will be populated/restored in accordance with the JSF 1.2 specification.

      * 

      * @param facesContext

      *            The current FacesContext (Should be the same as FacesContext.getInstance())

      * @param parent

      *            The UIComponent to populate in a compositional fashion. In most cases a Facelet will be base a

      *            UIViewRoot.

      * @throws IOException

      * @throws FacesException

      * @throws FaceletException

      * @throws ELException

      */

     public abstract void apply(FacesContext facesContext, UIComponent parent) throws IOException, FacesException,

             FaceletException, ELException;

 }