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: /** Objects that are bound to a session may listen to container
22: ** events notifying them that sessions will be passivated and that
23: ** session will be activated. A container that migrates session between VMs
24: ** or persists sessions is required to notify all attributes bound to sessions
25: ** implementing HttpSessionActivationListener.
26: **
27: * @since 2.3
28: */
29:
30: public interface HttpSessionActivationListener extends EventListener {
31:
32: /** Notification that the session is about to be passivated.*/
33: public void sessionWillPassivate(HttpSessionEvent se);
34:
35: /** Notification that the session has just been activated.*/
36: public void sessionDidActivate(HttpSessionEvent se);
37: }
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