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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtSql module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSQLDRIVER_H
#define QSQLDRIVER_H
#include <QtSql/qtsqlglobal.h>
#include <QtCore/qobject.h>
#include <QtCore/qstring.h>
#include <QtCore/qstringlist.h>
QT_BEGIN_NAMESPACE
class QSqlDatabase;
class QSqlDriverPrivate;
class QSqlError;
class QSqlField;
class QSqlIndex;
class QSqlRecord;
class QSqlResult;
class QVariant;
class Q_SQL_EXPORT QSqlDriver : public QObject
{
friend class QSqlDatabase;
friend class QSqlResultPrivate;
Q_OBJECT
Q_DECLARE_PRIVATE(QSqlDriver)
public:
enum DriverFeature { Transactions, QuerySize, BLOB, Unicode, PreparedQueries,
NamedPlaceholders, PositionalPlaceholders, LastInsertId,
BatchOperations, SimpleLocking, LowPrecisionNumbers,
EventNotifications, FinishQuery, MultipleResultSets, CancelQuery };
enum StatementType { WhereStatement, SelectStatement, UpdateStatement,
InsertStatement, DeleteStatement };
enum IdentifierType { FieldName, TableName };
enum NotificationSource { UnknownSource, SelfSource, OtherSource };
enum DbmsType {
UnknownDbms,
MSSqlServer,
MySqlServer,
PostgreSQL,
Oracle,
Sybase,
SQLite,
Interbase,
DB2
};
explicit QSqlDriver(QObject *parent = nullptr);
~QSqlDriver();
virtual bool isOpen() const;
bool isOpenError() const;
virtual bool beginTransaction();
virtual bool commitTransaction();
virtual bool rollbackTransaction();
virtual QStringList tables(QSql::TableType tableType) const;
virtual QSqlIndex primaryIndex(const QString &tableName) const;
virtual QSqlRecord record(const QString &tableName) const;
virtual QString formatValue(const QSqlField& field, bool trimStrings = false) const;
virtual QString escapeIdentifier(const QString &identifier, IdentifierType type) const;
virtual QString sqlStatement(StatementType type, const QString &tableName,
const QSqlRecord &rec, bool preparedStatement) const;
QSqlError lastError() const;
virtual QVariant handle() const;
virtual bool hasFeature(DriverFeature f) const = 0;
virtual void close() = 0;
virtual QSqlResult *createResult() const = 0;
virtual bool open(const QString& db,
const QString& user = QString(),
const QString& password = QString(),
const QString& host = QString(),
int port = -1,
const QString& connOpts = QString()) = 0;
virtual bool subscribeToNotification(const QString &name);
virtual bool unsubscribeFromNotification(const QString &name);
virtual QStringList subscribedToNotifications() const;
virtual bool isIdentifierEscaped(const QString &identifier, IdentifierType type) const;
virtual QString stripDelimiters(const QString &identifier, IdentifierType type) const;
void setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy precisionPolicy);
QSql::NumericalPrecisionPolicy numericalPrecisionPolicy() const;
DbmsType dbmsType() const;
public Q_SLOTS:
virtual bool cancelQuery();
Q_SIGNALS:
void notification(const QString &name);
void notification(const QString &name, QSqlDriver::NotificationSource source, const QVariant &payload);
protected:
QSqlDriver(QSqlDriverPrivate &dd, QObject *parent = nullptr);
virtual void setOpen(bool o);
virtual void setOpenError(bool e);
virtual void setLastError(const QSqlError& e);
private:
Q_DISABLE_COPY(QSqlDriver)
};
QT_END_NAMESPACE
#endif // QSQLDRIVER_H
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