/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtSql module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#ifndef QSQLNULLDRIVER_P_H+
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#define QSQLNULLDRIVER_P_H+
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+
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//+
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//  W A R N I N G+
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//  -------------+
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//+
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// This file is not part of the Qt API.  This header file may+
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// change from version to version without notice, or even be+
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// removed.+
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//+
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// We mean it.+
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//+
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+
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#include "QtCore/qvariant.h"+
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#include "QtSql/qsqldriver.h"+
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#include "QtSql/qsqlerror.h"+
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#include "QtSql/qsqlresult.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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class QSqlNullResult : public QSqlResult+
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{+
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public:+
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    inline explicit QSqlNullResult(const QSqlDriver* d): QSqlResult(d)+
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    { QSqlResult::setLastError(+
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            QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"), QSqlError::ConnectionError)); }+
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protected:+
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    inline QVariant data(int) { return QVariant(); }+
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    inline bool reset (const QString&) { return false; }+
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    inline bool fetch(int) { return false; }+
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    inline bool fetchFirst() { return false; }+
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    inline bool fetchLast() { return false; }+
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    inline bool isNull(int) { return false; }+
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    inline int size()  { return -1; }+
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    inline int numRowsAffected() { return 0; }+
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+
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    inline void setAt(int) {}+
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    inline void setActive(bool) {}+
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    inline void setLastError(const QSqlError&) {}+
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    inline void setQuery(const QString&) {}+
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    inline void setSelect(bool) {}+
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    inline void setForwardOnly(bool) {}+
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+
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    inline bool exec() { return false; }+
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    inline bool prepare(const QString&) { return false; }+
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    inline bool savePrepare(const QString&) { return false; }+
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    inline void bindValue(int, const QVariant&, QSql::ParamType) {}+
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    inline void bindValue(const QString&, const QVariant&, QSql::ParamType) {}+
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};+
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+
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class QSqlNullDriver : public QSqlDriver+
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{+
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public:+
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    inline QSqlNullDriver(): QSqlDriver()+
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    { QSqlDriver::setLastError(+
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            QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"), QSqlError::ConnectionError)); }+
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    inline bool hasFeature(DriverFeature) const { return false; }+
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    inline bool open(const QString &, const QString & , const QString & ,+
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              const QString &, int, const QString&)+
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    { return false; }+
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    inline void close() {}+
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    inline QSqlResult *createResult() const { return new QSqlNullResult(this); }+
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+
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protected:+
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    inline void setOpen(bool) {}+
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    inline void setOpenError(bool) {}+
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    inline void setLastError(const QSqlError&) {}+
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};+
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+
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QT_END_NAMESPACE+
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+
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#endif // QSQLNULLDRIVER_P_H+
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