qsparqldriver_p.h

/****************************************************************************
**
** Copyright (C) 2010-2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (ivan.frade@nokia.com)
**
** This file is part of the QtSparql module (not yet part of the Qt Toolkit).
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
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** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** GNU General Public License Usage
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// TODO: publish this header file when the Driver interface has stabilized
#ifndef QSPARQLDRIVER_H
#define QSPARQLDRIVER_H
 
#include <qsparqlconnection.h>
#include <qsparqlconnectionoptions.h>
#include <qsparqlquery.h>
 
#include <QtCore/qurl.h>
#include <QtCore/qobject.h>
#include <QtCore/qstring.h>
#include <QtCore/qstringlist.h>
 
 
QT_BEGIN_HEADER
 
QT_BEGIN_NAMESPACE
 
QT_MODULE(Sparql)
 
class QSparqlDriverPrivate;
class QSparqlError;
class QSparqlQueryOptions;
class QSparqlResult;
class QVariant;
 
class Q_SPARQL_EXPORT QSparqlDriver : public QObject
{
    Q_OBJECT
    friend class QSparqlConnection;
public:
    explicit QSparqlDriver(QObject *parent=0);
    ~QSparqlDriver();
    virtual bool isOpen() const;
    bool isOpenError() const;
 
    virtual bool beginTransaction();
    virtual bool commitTransaction();
    virtual bool rollbackTransaction();
 
    QSparqlError lastError() const;
 
    virtual QVariant handle() const;
    virtual bool hasFeature(QSparqlConnection::Feature f) const = 0;
    virtual bool hasError() const = 0;
    virtual void close() = 0;
    virtual QSparqlResult* exec(const QString& query, QSparqlQuery::StatementType type, const QSparqlQueryOptions& options) = 0;
 
    virtual bool open(const QSparqlConnectionOptions& options = QSparqlConnectionOptions()) = 0;
 
    void addPrefix(const QString& prefix, const QUrl& uri);
    QString prefixes() const;
    void clearPrefixes();
 
protected:
    virtual void setOpen(bool o);
    virtual void setOpenError(bool e);
    virtual void setLastError(const QSparqlError& e);
 
private:
    Q_DISABLE_COPY(QSparqlDriver)
    QSparqlDriverPrivate* d;
};
 
QT_END_NAMESPACE
 
QT_END_HEADER
 
#endif // QSPARQLDRIVER_H