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/*
This file is part of Akregator.
Copyright (C) 2005 Frank Osterfeld <frank.osterfeld@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 TQt, and distribute the resulting executable,
without including the source code for TQt in the source distribution.
*/
#ifndef AKREGATOR_BACKEND_FEEDSTORAGE_H
#define AKREGATOR_BACKEND_FEEDSTORAGE_H
#include <tqobject.h>
#include <tqstring.h>
#include "akregator_export.h"
class TQStringList;
namespace Akregator {
namespace Backend {
/** a convenience class to handle categories in the backend */
class AKREGATOR_EXPORT Category
{
public:
TQString term;
TQString scheme;
TQString name;
/** two categories are equal when scheme and term are equal, name is ignored */
bool operator==(const Category& other) const
{
return term == other.term && scheme == other.scheme;
}
bool operator!=(const Category& other) const
{
return !operator==(other);
}
/** we need this for TQMaps */
bool operator<(const Category& other) const
{
return other.scheme < other.scheme || (other.scheme == other.scheme && term < other.term);
}
};
class Storage;
class AKREGATOR_EXPORT FeedStorage : public TQObject
{
public:
virtual int unread() = 0;
virtual void setUnread(int unread) = 0;
virtual int totalCount() = 0;
virtual int lastFetch() = 0;
virtual void setLastFetch(int lastFetch) = 0;
/** returns the guids of all articles in this storage. If a tagID is given, only articles with this tag are returned */
virtual TQStringList articles(const TQString& tagID=TQString()) = 0;
/** returns the guid of the articles in a given category */
virtual TQStringList articles(const Category& cat) = 0;
/** Appends all articles from another storage. If there is already an article in this feed with the same guid, it is replaced by the article from the source
@param source the archive which articles should be appended
*/
virtual void add(FeedStorage* source) = 0;
/** reads an article from another storage and adds it to this storage */
virtual void copyArticle(const TQString& guid, FeedStorage* source) = 0;
/** deletes all articles from the archive */
virtual void clear() = 0;
virtual bool contains(const TQString& guid) = 0;
virtual void addEntry(const TQString& guid) = 0;
virtual void deleteArticle(const TQString& guid) = 0;
virtual int comments(const TQString& guid) = 0;
virtual TQString commentsLink(const TQString& guid) = 0;
virtual void setCommentsLink(const TQString& guid, const TQString& commentsLink) = 0;
virtual void setComments(const TQString& guid, int comments) = 0;
virtual bool guidIsHash(const TQString& guid) = 0;
virtual void setGuidIsHash(const TQString& guid, bool isHash) = 0;
virtual bool guidIsPermaLink(const TQString& guid) = 0;
virtual void setGuidIsPermaLink(const TQString& guid, bool isPermaLink) = 0;
virtual uint hash(const TQString& guid) = 0;
virtual void setHash(const TQString& guid, uint hash) = 0;
virtual void setDeleted(const TQString& guid) = 0;
virtual TQString link(const TQString& guid) = 0;
virtual void setLink(const TQString& guid, const TQString& link) = 0;
virtual uint pubDate(const TQString& guid) = 0;
virtual void setPubDate(const TQString& guid, uint pubdate) = 0;
virtual int status(const TQString& guid) = 0;
virtual void setStatus(const TQString& guid, int status) = 0;
virtual TQString title(const TQString& guid) = 0;
virtual void setTitle(const TQString& guid, const TQString& title) = 0;
virtual TQString description(const TQString& guid) = 0;
virtual void setDescription(const TQString& guid, const TQString& description) = 0;
virtual void addTag(const TQString& guid, const TQString& tag) = 0;
virtual void removeTag(const TQString& guid, const TQString& tag) = 0;
/** returns the tags of a given article. If @c guid is null, it returns all tags used in this feed */
virtual TQStringList tags(const TQString& guid=TQString()) = 0;
virtual void addCategory(const TQString& guid, const Category& category) = 0;
virtual TQValueList<Category> categories(const TQString& guid=TQString()) = 0;
virtual void setEnclosure(const TQString& guid, const TQString& url, const TQString& type, int length) = 0;
virtual void removeEnclosure(const TQString& guid) = 0;
virtual void setAuthor(const TQString& /*guid*/, const TQString& /*author*/) {}
virtual TQString author(const TQString& /*guid*/) { return TQString(); }
virtual void enclosure(const TQString& guid, bool& hasEnclosure, TQString& url, TQString& type, int& length) = 0;
virtual void close() = 0;
virtual void commit() = 0;
virtual void rollback() = 0;
virtual void convertOldArchive() = 0;
};
}
}
#endif
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