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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.servlet.http;
import java.util.EventListener;
/**
* Implementations of this interface are notified of changes to the list of active sessions in a web application. To
* receive notification events, the implementation class must be configured in the deployment descriptor for the web
* application.
*
* @see HttpSessionEvent
*
* @since Servlet 2.3
*/
public interface HttpSessionListener extends EventListener {
/**
* Notification that a session was created. The default implementation is a NO-OP.
*
* @param se the notification event
*/
default void sessionCreated(HttpSessionEvent se) {
}
/**
* Notification that a session is about to be invalidated. The default implementation is a NO-OP.
*
* @param se the notification event
*/
default void sessionDestroyed(HttpSessionEvent se) {
}
}
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