storage.h

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/*
    This file is part of Akregator.

    Copyright (C) 2005 Stanislav Karchebny <Stanislav.Karchebny@kdemail.net>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program 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 for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

    As a special exception, permission is given to link this program
    with any edition of Qt, and distribute the resulting executable,
    without including the source code for Qt in the source distribution.
*/

#ifndef AKREGATOR_BACKEND_STORAGE_H
#define AKREGATOR_BACKEND_STORAGE_H

#include "akregator_export.h"
#include <QtCore/QObject>

class QString;
class QStringList;

namespace Akregator {
namespace Backend {

class FeedStorage;

class Storage : public QObject //krazy:exclude=qobject
{
    public:

        virtual ~Storage() {}

        virtual void initialize(const QStringList& params) = 0;

        virtual bool open(bool autoCommit = false) = 0;

        virtual bool commit() = 0;

        virtual bool rollback() = 0;

        virtual bool close() = 0;

        virtual FeedStorage* archiveFor(const QString &url) = 0;
        virtual const FeedStorage* archiveFor(const QString &url) const = 0;
        virtual bool autoCommit() const  = 0;
        virtual int unreadFor(const QString &url) const = 0;
        virtual void setUnreadFor(const QString &url, int unread) = 0;
        virtual int totalCountFor(const QString &url) const = 0;
        virtual void setTotalCountFor(const QString &url, int total) = 0;
        virtual int lastFetchFor(const QString& url) const = 0;
        virtual void setLastFetchFor(const QString& url, int lastFetch) = 0;

        virtual void storeFeedList(const QString& opmlStr) = 0;
        virtual QString restoreFeedList() const = 0;

        virtual void storeTagSet(const QString& xmlStr) = 0;
        virtual QString restoreTagSet() const = 0;

        virtual QStringList feeds() const = 0;

        virtual void add(Storage* source) = 0;

        virtual void clear() = 0;
};

} // namespace Backend
} // namespace Akregator

#endif // AKREGATOR_BACKEND_STORAGE_H