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Java > Open Source Codes > org > apache > beehive > netui > pageflow > handler > Handler


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 javax.servlet.ServletContext JavaDoc;
21
22
23 /**
24  * Base handler interface.
25  */
26 public interface Handler
27 {
28     /**
29      * Initialize.
30      *
31      * @param handlerConfig the configuration object for this Handler.
32      * @param previousHandler the previously-registered Handler, which this one can adapt.
33      * @param servletContext the ServletContext for the webapp that is creating this object.
34      */
35     public void init( HandlerConfig handlerConfig, Handler previousHandler, ServletContext JavaDoc servletContext );
36     
37     /**
38      * Reinitialize, normally used to reconsitute transient data that was lost during serialization.
39      *
40      * @param servletContext the ServletContext for the webapp that is reinitializing this object.
41      */
42     public void reinit( ServletContext JavaDoc servletContext );
43 }
44
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