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1   /**
2    *
3    * Copyright 2003-2004 The Apache Software Foundation
4    *
5    *  Licensed under the Apache License, Version 2.0 (the "License");
6    *  you may not use this file except in compliance with the License.
7    *  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   *  Unless required by applicable law or agreed to in writing, software
12   *  distributed under the License is distributed on an "AS IS" BASIS,
13   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   *  See the License for the specific language governing permissions and
15   *  limitations under the License.
16   */
17  
18  //
19  // This source code implements specifications defined by the Java
20  // Community Process. In order to remain compliant with the specification
21  // DO NOT add / change / or delete method signatures!
22  //
23  
24  package javax.servlet;
25  
26  import java.util.EventListener;
27  
28  /**
29   * Implementations of this interface recieve notifications about changes
30   * to the servlet context of the web application they are part of.
31   * To recieve notification events, the implementation class
32   * must be configured in the deployment descriptor for the web application.
33   *
34   * @see ServletContextEvent
35   *
36   * @since Servlet 2.3
37   *
38   * @version $Rev: 46019 $ $Date: 2004-09-14 02:56:06 -0700 (Tue, 14 Sep 2004) $
39   */
40  public interface ServletContextListener extends EventListener {
41      /**
42       * Notification that the web application initialization
43       * process is starting.
44       * All ServletContextListeners are notified of context
45       * initialisation before any filter or servlet in the web
46       * application is initialized.
47       */
48      public void contextInitialized(ServletContextEvent sce);
49  
50      /**
51       * Notification that the servlet context is about to be shut down. All servlets
52       * have been destroy()ed before any ServletContextListeners are notified of context
53       * destruction.
54       */
55      public void contextDestroyed(ServletContextEvent sce);
56  }
57