/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.0 (the "NPL"); you may not use this file except in
 * compliance with the NPL.  You may obtain a copy of the NPL at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the NPL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
 * for the specific language governing rights and limitations under the
 * NPL.
 *
 * The Initial Developer of this code under the NPL is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1999 Netscape Communications Corporation.  All Rights
 * Reserved.
 */

#include "nsISupports.idl"
#include "MailNewsTypes2.idl"

interface nsIDBChangeListener;

[scriptable, uuid(2aa6733a-2b36-11d3-a51c-0060b0fc04b7)]

interface nsIDBChangeAnnouncer  : nsISupports {
 /* these 2 calls return NS_OK on success, NS_COMFALSE on failure */
  void AddListener(in nsIDBChangeListener listener);
  void RemoveListener(in nsIDBChangeListener listener);

  void NotifyKeyChangeAll(in nsMsgKey keyChanged, in unsigned long aOldFlags, in unsigned long aNewFlags, 
                                in nsIDBChangeListener instigator);
  void NotifyKeyAddedAll(in nsMsgKey keyAdded, in long flags, 
                               in nsIDBChangeListener instigator);
  void NotifyKeyDeletedAll(in nsMsgKey keyDeleted, in long flags, 
                                 in nsIDBChangeListener instigator);
  void NotifyAnnouncerGoingAway();
};

