ExceptionsHandler


1   /*
2    * Copyright 2004 The Apache Software Foundation.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   *
16   * $Header:$
17   */
18  package org.apache.beehive.netui.pageflow.handler;
19  
20  import org.apache.struts.action.ActionForward;
21  import org.apache.struts.action.ActionMapping;
22  import org.apache.struts.action.ActionForm;
23  
24  import javax.servlet.http.HttpServletRequest  ;
25  import javax.servlet.http.HttpServletResponse  ;
26  import javax.servlet.ServletContext  ;
27  import javax.servlet.ServletException  ;
28  
29  import org.apache.beehive.netui.pageflow.FlowController;
30  
31  import java.io.IOException  ;
32  
33  
34  /**
35   * Handler for exception processing.
36   */
37  public interface ExceptionsHandler
38      extends Handler
39  {
40      ActionForward handleException( FlowControllerHandlerContext context, Throwable   ex, ActionMapping actionMapping,
41                                     ActionForm form )
42          throws IOException  , ServletException  ;
43  
44      Throwable   unwrapException( FlowControllerHandlerContext context, Throwable   ex );
45  
46      void exposeException( FlowControllerHandlerContext context, Throwable   ex, ActionMapping actionMapping );
47  
48      boolean eatUnhandledException( FlowControllerHandlerContext context, Throwable   ex );
49  }
50

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