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Diffstat (limited to 'src/sql/kernel/qsqlnulldriver_p.h')
| -rw-r--r-- | src/sql/kernel/qsqlnulldriver_p.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/sql/kernel/qsqlnulldriver_p.h b/src/sql/kernel/qsqlnulldriver_p.h new file mode 100644 index 0000000..e899a0b --- /dev/null +++ b/src/sql/kernel/qsqlnulldriver_p.h @@ -0,0 +1,114 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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 |