/*

  * 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.context;

 import javax.faces.FacesException;

 import javax.faces.FacesWrapper;

 import javax.faces.lifecycle.Lifecycle;

 /**

  * see Javadoc of <a href="http://java.sun.com/javaee/javaserverfaces/1.2/docs/api/index.html">JSF Specification</a>

  */

 public abstract class FacesContextFactory implements FacesWrapper<FacesContextFactory>

 {

     public abstract FacesContext getFacesContext(Object context, Object request, Object response, Lifecycle lifecycle)

             throws FacesException;

     /**

      * If this factory has been decorated, the implementation doing the decorating may override this method to provide

      * access to the implementation being wrapped. A default implementation is provided that returns <code>null</code>.

      * 

      * @return the decorated <code>FacesContextFactory</code> if this factory decorates another, or <code>null</code>

      *         otherwise

      * 

      * @since 2.0

      */

     public FacesContextFactory getWrapped()

     {

         return null;

     }

 }