/*
 * Copyright 1997-2001 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */


package javax.net.ssl;

import java.util.EventListener;

/**
 * This interface is implemented by objects which want to know when
 * they are being bound or unbound from a SSLSession.  When either event
 * occurs via {@link SSLSession#putValue(String, Object)}
 * or {@link SSLSession#removeValue(String)}, the event is communicated
 * through a SSLSessionBindingEvent identifying the session.
 *
 * @see SSLSession
 * @see SSLSessionBindingEvent
 *
 * @since 1.4
 * @author Nathan Abramson
 * @author David Brownell
 */
public
interface SSLSessionBindingListener
extends EventListener
{
    /**
     * This is called to notify the listener that it is being bound into
     * an SSLSession.
     *
     * @param event the event identifying the SSLSession into
     *          which the listener is being bound.
     */
    public void valueBound(SSLSessionBindingEvent event);

    /**
     * This is called to notify the listener that it is being unbound
     * from a SSLSession.
     *
     * @param event the event identifying the SSLSession from
     *          which the listener is being unbound.
     */
    public void valueUnbound(SSLSessionBindingEvent event);
}