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/tmp/buildd/soprano-2.5.0.e5.20110117.1215001/soprano/inference/statementpattern.h

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00001 /*
00002  * This file is part of Soprano Project.
00003  *
00004  * Copyright (C) 2007 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 Library General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2 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  * Library General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Library 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_STATEMENT_PATTERN_H_
00023 #define _SOPRANO_STATEMENT_PATTERN_H_
00024 
00025 #include <QtCore/QSharedDataPointer>
00026 
00027 #include "soprano_export.h"
00028 #include "node.h"
00029 
00030 
00031 namespace Soprano {
00032 
00033     class Statement;
00034     class BindingSet;
00035 
00036     namespace Inference {
00037 
00038         class NodePattern;
00039 
00052         class SOPRANO_EXPORT StatementPattern
00053         {
00054         public:
00058             StatementPattern();
00059             StatementPattern( const NodePattern&, const NodePattern&, const NodePattern& );
00060             StatementPattern( const StatementPattern& );
00061             ~StatementPattern();
00062 
00063             StatementPattern operator=( const StatementPattern& );
00064 
00065             NodePattern subjectPattern() const;
00066             NodePattern predicatePattern() const;
00067             NodePattern objectPattern() const;
00068 
00069             bool match( const Statement& ) const;
00070 
00071             QString createSparqlGraphPattern( const BindingSet& bindings ) const;
00072 
00078             bool isValid() const;
00079 
00080         private:
00081             class Private;
00082             QSharedDataPointer<Private> d;
00083         };
00084     }
00085 }
00086 
00087 SOPRANO_EXPORT QDebug operator<<( QDebug s, const Soprano::Inference::StatementPattern& );
00088 
00089 #endif

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