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 * 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
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 *     http://www.apache.org/licenses/LICENSE-2.0
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package jakarta.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 Also:
  • HttpSessionEvent
Since:v 2.3
/** * 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 v 2.3 */
public interface HttpSessionListener extends EventListener {
Notification that a session was created. The default implementation is a NO-OP.
Params:
  • se – the notification event
/** * Notification that a session was created. * The default implementation is a NO-OP. * * @param se * the notification event */
public default void sessionCreated(HttpSessionEvent se) { }
Notification that a session is about to be invalidated. The default implementation is a NO-OP.
Params:
  • se – the notification event
/** * Notification that a session is about to be invalidated. * The default implementation is a NO-OP. * * @param se * the notification event */
public default void sessionDestroyed(HttpSessionEvent se) { } }