kmail Library API Documentation

iobserver.h

00001 /*  -*- mode: C++; c-file-style: "gnu" -*-
00002  *
00003  *  This file is part of KMail, the KDE mail client.
00004  *  Copyright (c) 2003 Carsten Burghardt <burghardt@kde.org>
00005  *
00006  *  KMail is free software; you can redistribute it and/or modify it
00007  *  under the terms of the GNU General Public License, version 2, as
00008  *  published by the Free Software Foundation.
00009  *
00010  *  KMail is distributed in the hope that it will be useful, but
00011  *  WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013  *  General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00018  *
00019  *  In addition, as a special exception, the copyright holders give
00020  *  permission to link the code of this program with any edition of
00021  *  the Qt library by Trolltech AS, Norway (or with modified versions
00022  *  of Qt that use the same license as Qt), and distribute linked
00023  *  combinations including the two.  You must obey the GNU General
00024  *  Public License in all respects for all of the code used other than
00025  *  Qt.  If you modify this file, you may extend this exception to
00026  *  your version of the file, but you are not obligated to do so.  If
00027  *  you do not wish to do so, delete this exception statement from
00028  *  your version.
00029  */
00030 
00031 #ifndef _OBSERVER
00032 #define _OBSERVER
00033 
00034 namespace KMail {
00035 
00036   class ISubject;
00037 
00038   class IObserver
00039   {
00040     // Destructor
00041     public :
00042       virtual ~IObserver();
00043 
00044       // Methods
00045     public :
00046       virtual bool update( ISubject * ) = 0;
00047 
00048       // Protected constructor
00049     protected :
00050       IObserver();
00051   };
00052 
00053 }
00054 
00055 #endif
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This file is part of the documentation for kmail Library Version 3.2.2.
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