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Clementine-audio-player-Mac.../3rdparty/qsqlite/clementinesqlcachedresult.h

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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtSql module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef CLEMENTINECACHEDRESULT_P_H
#define CLEMENTINECACHEDRESULT_P_H
#include <QSqlResult>
class QVariant;
template <typename T> class QVector;
class ClementineSqlCachedResultPrivate;
class ClementineSqlCachedResult: public QSqlResult
{
public:
virtual ~ClementineSqlCachedResult();
typedef QVector<QVariant> ValueCache;
protected:
ClementineSqlCachedResult(const QSqlDriver * db);
void init(int colCount);
void cleanup();
void clearValues();
virtual bool gotoNext(ValueCache &values, int index) = 0;
QVariant data(int i);
bool isNull(int i);
bool fetch(int i);
bool fetchNext();
bool fetchPrevious();
bool fetchFirst();
bool fetchLast();
int colCount() const;
ValueCache &cache();
void virtual_hook(int id, void *data);
private:
bool cacheNext();
ClementineSqlCachedResultPrivate *d;
};
#endif // CLEMENTINESQLCACHEDRESULT_P_H