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NepomukDaemons

ontologyloader.h

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00001 /* This file is part of the KDE Project
00002    Copyright (c) 2007 Sebastian Trueg <trueg@kde.org>
00003 
00004    This library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Library General Public
00006    License version 2 as published by the Free Software Foundation.
00007 
00008    This library is distributed in the hope that it will be useful,
00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011    Library General Public License for more details.
00012 
00013    You should have received a copy of the GNU Library General Public License
00014    along with this library; see the file COPYING.LIB.  If not, write to
00015    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00016    Boston, MA 02110-1301, USA.
00017 */
00018 
00019 #ifndef _NEPOMUK_SERVER_ONTOLOGY_LOADER_H_
00020 #define _NEPOMUK_SERVER_ONTOLOGY_LOADER_H_
00021 
00022 #include <Nepomuk/Service>
00023 #include <QtCore/QUrl>
00024 
00025 namespace Soprano {
00026     class Model;
00027 }
00028 
00029 class KJob;
00030 
00031 
00032 // Hint: Using QString instead of QUrl for URIs since this API will be exported via DBus and not used otherwise
00033 namespace Nepomuk {
00034     class OntologyLoader : public Nepomuk::Service
00035     {
00036         Q_OBJECT
00037 
00038     public:
00039         OntologyLoader( QObject* parent = 0, const QList<QVariant>& args = QList<QVariant>() );
00040         ~OntologyLoader();
00041 
00042     public Q_SLOTS:
00048         QString findOntologyContext( const QString& uri );
00049 
00053         void updateLocalOntologies();
00054 
00058         void updateAllLocalOntologies();
00059 
00066         void importOntology( const QString& url );
00067 
00068     Q_SIGNALS:
00074         void ontologyUpdated( const QString& uri );
00075 
00081         void ontologyUpdateFailed( const QString& uri, const QString& error );
00082 
00083     private Q_SLOTS:
00084         // a little async updating
00085         void updateNextOntology();
00086         void slotGraphRetrieverResult( KJob* job );
00087 
00088     private:
00089         class Private;
00090         Private* const d;
00091     };
00092 }
00093 
00094 #endif

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