akregator/src

storage.h

00001 /*
00002     This file is part of Akregator.
00003 
00004     Copyright (C) 2005 Stanislav Karchebny <Stanislav.Karchebny@kdemail.net>
00005 
00006     This program is free software; you can redistribute it and/or modify
00007     it under the terms of the GNU General Public License as published by
00008     the Free Software Foundation; either version 2 of the License, or
00009     (at your option) any later version.
00010 
00011     This program is distributed in the hope that it will be useful,
00012     but WITHOUT ANY WARRANTY; without even the implied warranty of
00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00014     GNU General Public License for more details.
00015 
00016     You should have received a copy of the GNU General Public License
00017     along with this program; if not, write to the Free Software
00018     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00019 
00020     As a special exception, permission is given to link this program
00021     with any edition of Qt, and distribute the resulting executable,
00022     without including the source code for Qt in the source distribution.
00023 */
00024 
00025 #ifndef AKREGATOR_BACKEND_STORAGE_H
00026 #define AKREGATOR_BACKEND_STORAGE_H
00027 
00028 #include <qobject.h>
00029 
00030 #include "akregator_export.h"
00031 
00032 class QString;
00033 class QStringList;
00034 
00035 namespace Akregator {
00036 namespace Backend {
00037 
00038 class FeedStorage;
00039 
00044 class AKREGATOR_EXPORT Storage : public QObject
00045 {
00046     public:
00047 
00048         static Storage* getInstance();
00049         static void setInstance(Storage* instance);
00050 
00051         virtual ~Storage() {}
00052 
00055         virtual void initialize(const QStringList& params) = 0;
00056         
00061         virtual bool open(bool autoCommit = false) = 0;
00062 
00067         virtual bool commit() = 0;
00068 
00073         virtual bool rollback() = 0;
00074 
00079         virtual bool close() = 0;
00080 
00084         virtual FeedStorage* archiveFor(const QString &url) = 0;
00085         virtual bool autoCommit() const  = 0;
00086         virtual int unreadFor(const QString &url) = 0;
00087         virtual void setUnreadFor(const QString &url, int unread) = 0;
00088         virtual int totalCountFor(const QString &url) = 0;
00089         virtual void setTotalCountFor(const QString &url, int total) = 0;
00090         virtual int lastFetchFor(const QString& url) = 0;
00091         virtual void setLastFetchFor(const QString& url, int lastFetch) = 0;
00092 
00097         virtual void storeFeedList(const QString& opmlStr) = 0;
00098         virtual QString restoreFeedList() const = 0;
00099 
00100         virtual void storeTagSet(const QString& xmlStr) = 0;
00101         virtual QString restoreTagSet() const = 0;
00102 
00105         virtual QStringList feeds() const = 0;
00106 
00110         virtual void add(Storage* source) = 0;
00111         
00113         virtual void clear() = 0;
00114         
00115      private:
00116         
00117         static Storage *m_instance;
00118 };
00119 
00120 }
00121 }
00122 
00123 #endif
KDE Home | KDE Accessibility Home | Description of Access Keys