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/****************************************************************************
**
** Copyright (C) 2011 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.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSQLNULLDRIVER_P_H
#define QSQLNULLDRIVER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. This header file may
// change from version to version without notice, or even be
// removed.
//
// We mean it.
//
#include "QtCore/qvariant.h"
#include "QtSql/qsqldriver.h"
#include "QtSql/qsqlerror.h"
#include "QtSql/qsqlresult.h"
QT_BEGIN_NAMESPACE
class QSqlNullResult : public QSqlResult
{
public:
inline explicit QSqlNullResult(const QSqlDriver* d): QSqlResult(d)
{ QSqlResult::setLastError(
QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"), QSqlError::ConnectionError)); }
protected:
inline QVariant data(int) { return QVariant(); }
inline bool reset (const QString&) { return false; }
inline bool fetch(int) { return false; }
inline bool fetchFirst() { return false; }
inline bool fetchLast() { return false; }
inline bool isNull(int) { return false; }
inline int size() { return -1; }
inline int numRowsAffected() { return 0; }
inline void setAt(int) {}
inline void setActive(bool) {}
inline void setLastError(const QSqlError&) {}
inline void setQuery(const QString&) {}
inline void setSelect(bool) {}
inline void setForwardOnly(bool) {}
inline bool exec() { return false; }
inline bool prepare(const QString&) { return false; }
inline bool savePrepare(const QString&) { return false; }
inline void bindValue(int, const QVariant&, QSql::ParamType) {}
inline void bindValue(const QString&, const QVariant&, QSql::ParamType) {}
};
class QSqlNullDriver : public QSqlDriver
{
public:
inline QSqlNullDriver(): QSqlDriver()
{ QSqlDriver::setLastError(
QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"), QSqlError::ConnectionError)); }
inline bool hasFeature(DriverFeature) const { return false; }
inline bool open(const QString &, const QString & , const QString & ,
const QString &, int, const QString&)
{ return false; }
inline void close() {}
inline QSqlResult *createResult() const { return new QSqlNullResult(this); }
protected:
inline void setOpen(bool) {}
inline void setOpenError(bool) {}
inline void setLastError(const QSqlError&) {}
};
QT_END_NAMESPACE
#endif // QSQLNULLDRIVER_P_H
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