• Main Page
  • Related Pages
  • Namespaces
  • Classes
  • Files
  • File List
  • File Members

/builddir/build/BUILD/soprano-2.6.0/soprano/util/asyncquery.h

Go to the documentation of this file.
00001 /*
00002  * This file is part of Soprano Project.
00003  *
00004  * Copyright (C) 2009 Sebastian Trueg <trueg@kde.org>
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2.1 of the License, or (at your option) any later version.
00010  *
00011  * This library 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 GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public License
00017  * along with this library; see the file COPYING.LIB.  If not, write to
00018  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00019  * Boston, MA 02110-1301, USA.
00020  */
00021 
00022 #ifndef _SOPRANO_UTIL_ASYNC_QUERY_H_
00023 #define _SOPRANO_UTIL_ASYNC_QUERY_H_
00024 
00025 #include <QtCore/QObject>
00026 #include "error.h"
00027 #include "sopranotypes.h"
00028 #include "soprano_export.h"
00029 
00030 namespace Soprano {
00031 
00032     class Statement;
00033     class BindingSet;
00034     class Node;
00035     class Model;
00036 
00037     namespace Util {
00076         class SOPRANO_EXPORT AsyncQuery : public QObject, public Error::ErrorCache
00077         {
00078             Q_OBJECT
00079 
00080         public:
00088             ~AsyncQuery();
00089 
00091 
00095             Statement currentStatement() const;
00096 
00101             BindingSet currentBindings() const;
00102 
00110             bool boolValue() const;
00112 
00114 
00124             Node binding( const QString &name ) const;
00125 
00136             Node binding( int offset ) const;
00137 
00145             int bindingCount() const;
00146 
00152             QStringList bindingNames() const;
00154 
00156 
00162             bool isGraph() const;
00163 
00170             bool isBinding() const;
00171 
00181             bool isBool() const;
00183 
00184         public Q_SLOTS:
00193             bool next();
00194 
00202             void close();
00203 
00204         Q_SIGNALS:
00213             void nextReady( Soprano::Util::AsyncQuery* query );
00214 
00226             void finished( Soprano::Util::AsyncQuery* query );
00227 
00228         public:
00244             static AsyncQuery* executeQuery( Soprano::Model* model,
00245                                              const QString& query,
00246                                              Query::QueryLanguage language,
00247                                              const QString& userQueryLanguage = QString() );
00248 
00249         private:
00250             AsyncQuery();
00251 
00252             class Private;
00253             Private* const d;
00254 
00255             Q_PRIVATE_SLOT( d, void _s_finished() )
00256             Q_PRIVATE_SLOT( d, void _s_emitNextReady() )
00257         };
00258     }
00259 }
00260 
00261 #endif

Generated on Sun Feb 27 2011 for Soprano by  doxygen 1.7.1