qsparql_tracker_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
** This file may be used under the terms of the GNU Lesser General Public
** 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
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at ivan.frade@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
 
#ifndef QSPARQL_TRACKER_H
#define QSPARQL_TRACKER_H
 
#include <private/qsparqldriver_p.h>
#include <qsparqlresult.h>
#include <qsparqlquery.h>
 
#include <QtDBus/QtDBus>
 
#if defined (Q_OS_WIN32)
#include <QtCore/qt_windows.h>
#endif
 
#ifdef QT_PLUGIN
#define Q_EXPORT_SPARQLDRIVER_TRACKER
#else
#define Q_EXPORT_SPARQLDRIVER_TRACKER Q_SPARQL_EXPORT
#endif
 
QT_BEGIN_HEADER
 
QT_BEGIN_NAMESPACE
 
class QTrackerDriverPrivate;
class QTrackerResultPrivate;
class QTrackerDriver;
 
class Q_EXPORT_SPARQLDRIVER_TRACKER QTrackerResult : public QSparqlResult
{
    Q_OBJECT
    friend class QTrackerResultPrivate; // for emitting signals
public:
    explicit QTrackerResult(const QString& query, QSparqlQuery::StatementType type, QTrackerDriver* driver);
    ~QTrackerResult();
 
    // Implementation of the QSparqlResult interface
    virtual void waitForFinished();
    virtual bool isFinished() const;
 
    virtual QSparqlResultRow current() const;
    virtual QSparqlBinding binding(int i) const;
    virtual QVariant value(int i) const;
    virtual bool hasFeature(QSparqlResult::Feature feature) const;
 
public:
    void exec(const QSparqlQueryOptions& options);
 
private Q_SLOTS:
    void driverClosing();
 
protected:
    int size() const;
 
private:
    QTrackerResultPrivate* d;
};
 
class Q_EXPORT_SPARQLDRIVER_TRACKER QTrackerDriver : public QSparqlDriver
{
    Q_OBJECT
    friend class QTrackerResult;
public:
    explicit QTrackerDriver(QObject *parent=0);
    ~QTrackerDriver();
 
    // Implementation of the QSparqlDriver interface
    bool hasFeature(QSparqlConnection::Feature f) const;
    bool hasError() const;
    bool open(const QSparqlConnectionOptions& options);
    void close();
    QTrackerResult* exec(const QString& query,
                         QSparqlQuery::StatementType type,
                         const QSparqlQueryOptions& options);
Q_SIGNALS:
    void closing();
 
private:
    QTrackerDriverPrivate* d;
};
 
QT_END_NAMESPACE
 
QT_END_HEADER
 
#endif // QSPARQL_TRACKER_H