gecko-dev/grendel/view/MessageSetViewObserver.java

45 строки
1.7 KiB
Java

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*
* Created: Terry Weissman <terry@netscape.com>, 17 Sep 1997.
*/
package grendel.view;
import java.util.Enumeration;
/** Anyone who wants to know when messages are added, removed, or tweaked in
* a MessageSetView can implement this and add themselves to that
* MessageSetView's list of observers.
*/
public interface MessageSetViewObserver {
/** Some messages changed. Each enumeration parameter might be null, or
* it might be an enumeration of ViewedMessage objects.
* @param inserted new messages that have appeared
* @param deleted old messages that are no longer considered
* part of the MessageSetView
* @param changed Messages that have had their internals tweaked
* in some way
*/
public void messagesChanged(Enumeration inserted,
Enumeration deleted,
Enumeration changed);
};