jakarta.servlet.http.HttpSessionActivationListener Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates and others.
* All rights reserved.
* Copyright 2004 The Apache Software Foundation
*
* Licensed 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 jakarta.servlet.http;
import java.util.EventListener;
/**
* Objects that are bound to a session may listen to container events notifying them that sessions will be passivated
* and that session will be activated. A container that migrates session between VMs or persists sessions is required to
* notify all attributes bound to sessions implementing HttpSessionActivationListener.
*
* @since Servlet 2.3
*/
public interface HttpSessionActivationListener extends EventListener {
/**
* Notification that the session is about to be passivated.
*
* @implSpec The default implementation takes no action.
*
* @param se the {@link HttpSessionEvent} indicating the passivation of the session
*/
default public void sessionWillPassivate(HttpSessionEvent se) {
}
/**
* Notification that the session has just been activated.
*
* @implSpec The default implementation takes no action.
*
* @param se the {@link HttpSessionEvent} indicating the activation of the session
*/
default public void sessionDidActivate(HttpSessionEvent se) {
}
}