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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtSql module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSQLCACHEDRESULT_P_H
#define QSQLCACHEDRESULT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "QtSql/qsqlresult.h"
QT_BEGIN_NAMESPACE
class QVariant;
template <typename T> class QVector;
class QSqlCachedResultPrivate;
class Q_SQL_EXPORT QSqlCachedResult: public QSqlResult
{
public:
virtual ~QSqlCachedResult();
typedef QVector<QVariant> ValueCache;
protected:
QSqlCachedResult(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);
void detachFromResultSet();
void setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy policy);
private:
bool cacheNext();
QSqlCachedResultPrivate *d;
};
QT_END_NAMESPACE
#endif // QSQLCACHEDRESULT_P_H
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