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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package javax.faces.context;
20  
21  import javax.faces.FacesWrapper;
22  
23  /**
24   * @since 2.0
25   */
26  public abstract class ExceptionHandlerFactory implements FacesWrapper<ExceptionHandlerFactory>
27  {
28      public abstract ExceptionHandler getExceptionHandler();
29  
30      /**
31       * If this factory has been decorated, the implementation doing the decorating may override this method to provide
32       * access to the implementation being wrapped. A default implementation is provided that returns <code>null</code>.
33       * 
34       * @return the decorated <code>DiscoveryHandlerFactory</code> if this factory decorates another, or
35       *         <code>null</code> otherwise
36       * 
37       * @since 2.0
38       */
39      public ExceptionHandlerFactory getWrapped()
40      {
41          return null;
42      }
43  }