/******************************************************************************** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.**** This file is part of the QtSql module of the Qt Toolkit.**** This file may be used under the terms of the GNU General Public** License version 2.0 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 GNU** General Public Licensing requirements will be met:** http://www.trolltech.com/products/qt/opensource.html**** If you are unsure which license is appropriate for your use, please** review the following information:** http://www.trolltech.com/products/qt/licensing.html or contact the** sales department at sales@trolltech.com.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#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"class QSqlNullResult : public QSqlResult{public:    inline explicit QSqlNullResult(const QSqlDriver* d): QSqlResult(d)    { QSqlResult::setLastError(            QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"))); }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"))); }    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&) {}};#endif // QSQLNULLDRIVER_P_H