01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * 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: package javax.servlet.http;
18:
19: import java.util.EventListener;
20:
21: /**
22: * Implementations of this interface are notified of changes to the
23: * list of active sessions in a web application.
24: * To receive notification events, the implementation class
25: * must be configured in the deployment descriptor for the web application.
26: * @see HttpSessionEvent
27: * @since v 2.3
28: */
29:
30: public interface HttpSessionListener extends EventListener {
31:
32: /**
33: * Notification that a session was created.
34: * @param se the notification event
35: */
36: public void sessionCreated(HttpSessionEvent se);
37:
38: /**
39: * Notification that a session is about to be invalidated.
40: * @param se the notification event
41: */
42: public void sessionDestroyed(HttpSessionEvent se);
43:
44: }
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