Soprano  2.9.2
storagemodel.h
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1 /*
2  * This file is part of Soprano Project.
3  *
4  * Copyright (C) 2007 Sebastian Trueg <trueg@kde.org>
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Library General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Library General Public License for more details.
15  *
16  * You should have received a copy of the GNU Library General Public License
17  * along with this library; see the file COPYING.LIB. If not, write to
18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19  * Boston, MA 02110-1301, USA.
20  */
21 
22 #ifndef _SOPRANO_STORAGE_MODEL_H_
23 #define _SOPRANO_STORAGE_MODEL_H_
24 
25 #include "model.h"
26 #include "soprano_export.h"
27 
28 namespace Soprano {
29 
30  class Backend;
31 
45  {
46  Q_OBJECT
47 
48  public:
49  virtual ~StorageModel();
50 
54  virtual bool isEmpty() const;
55 
59  virtual bool containsStatement( const Statement &statement ) const;
60 
64  virtual bool containsAnyStatement( const Statement &statement ) const;
65 
69  virtual Error::ErrorCode removeAllStatements( const Statement &statement );
70 
71  /*
72  * Default implementation uses Query::Serializer for Query::QueryLanguageSparql and
73  * executeQuery( const QString&, Query::QueryLanguage, const QString& ) const.
74  *
75  * Be aware that one of the two query methods has to be re-implemented.
76  * Otherwise calling one of them results in an endless loop.
77  */
78 // virtual QueryResultIterator executeQuery( const Query::Query& query ) const;
79 
80  /*
81  * Default implementation uses Query::Parser and
82  * executeQuery( const Query::Query& ) const.
83  *
84  * Be aware that one of the two query methods has to be re-implemented.
85  * Otherwise calling one of them results in an endless loop.
86  */
87 // virtual QueryResultIterator executeQuery( const QString& query, Query::QueryLanguage language, const QString& userQueryLanguage = QString() ) const;
88 
92  const Backend* backend() const;
93 
97 
98  protected:
102  StorageModel( const Backend* backend );
103 
104  private:
105  class Private;
106  Private* const d;
107  };
108 }
109 
110 #endif
Soprano::Backend defines the interface for a Soprano backend plugin.
Definition: backend.h:263
Base class for all Model implementations that store data (as compared to FilterModel).
Definition: storagemodel.h:44
A Statement instance represents one RDF quadruple.
Definition: statement.h:47
Error::ErrorCode removeAllStatements()
virtual bool containsStatement(const Statement &statement) const =0
#define SOPRANO_EXPORT
virtual bool containsAnyStatement(const Statement &statement) const =0
A Model is the central class in Soprano. It is a queryable collection of RDF quadruples, i.e statements.
Definition: model.h:94