util/src/sql/drivers/odbc/qsql_odbc.h
author eckhart.koppen@nokia.com
Wed, 31 Mar 2010 11:06:36 +0300
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/****************************************************************************
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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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#ifndef QSQL_ODBC_H
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#define QSQL_ODBC_H
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#include <QtSql/qsqldriver.h>
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#include <QtSql/qsqlresult.h>
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#if defined (Q_OS_WIN32)
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#include <QtCore/qt_windows.h>
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#endif
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#if defined (Q_OS_MAC) && (MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_3)
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// assume we use iodbc on MACX
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// comment next line out if you use a
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// unicode compatible manager
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# define Q_ODBC_VERSION_2
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#endif
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#ifdef QT_PLUGIN
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#define Q_EXPORT_SQLDRIVER_ODBC
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#else
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#define Q_EXPORT_SQLDRIVER_ODBC Q_SQL_EXPORT
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#endif
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#ifdef Q_OS_UNIX
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#define HAVE_LONG_LONG 1 // force UnixODBC NOT to fall back to a struct for BIGINTs
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#endif
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#if defined(Q_CC_BOR)
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// workaround for Borland to make sure that SQLBIGINT is defined
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#  define _MSC_VER 900
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#endif
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#include <sql.h>
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#if defined(Q_CC_BOR)
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#  undef _MSC_VER
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#endif
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#include <sqlext.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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class QODBCPrivate;
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class QODBCDriverPrivate;
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class QODBCDriver;
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class QSqlRecordInfo;
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class QODBCResult : public QSqlResult
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{
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public:
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    QODBCResult(const QODBCDriver * db, QODBCDriverPrivate* p);
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    virtual ~QODBCResult();
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    bool prepare(const QString& query);
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    bool exec();
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    QVariant handle() const;
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    virtual void setForwardOnly(bool forward);
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protected:
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    bool fetchNext();
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    bool fetchFirst();
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    bool fetchLast();
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    bool fetchPrevious();
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    bool fetch(int i);
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    bool reset (const QString& query);
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    QVariant data(int field);
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    bool isNull(int field);
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    int size();
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    int numRowsAffected();
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    QSqlRecord record() const;
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    void virtual_hook(int id, void *data);
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    bool nextResult();
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private:
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    QODBCPrivate *d;
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};
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class Q_EXPORT_SQLDRIVER_ODBC QODBCDriver : public QSqlDriver
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{
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    Q_OBJECT
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public:
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    explicit QODBCDriver(QObject *parent=0);
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    QODBCDriver(SQLHANDLE env, SQLHANDLE con, QObject * parent=0);
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    virtual ~QODBCDriver();
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    bool hasFeature(DriverFeature f) const;
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    void close();
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    QSqlResult *createResult() const;
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    QStringList tables(QSql::TableType) const;
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    QSqlRecord record(const QString& tablename) const;
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    QSqlIndex primaryIndex(const QString& tablename) const;
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    QVariant handle() const;
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    QString formatValue(const QSqlField &field,
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                        bool trimStrings) const;
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    bool open(const QString& db,
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              const QString& user,
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              const QString& password,
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              const QString& host,
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              int port,
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              const QString& connOpts);
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    QString escapeIdentifier(const QString &identifier, IdentifierType type) const;
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protected Q_SLOTS:
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    bool isIdentifierEscapedImplementation(const QString &identifier, IdentifierType type) const;
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protected:
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    bool beginTransaction();
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    bool commitTransaction();
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    bool rollbackTransaction();
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private:
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    void init();
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    bool endTrans();
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    void cleanup();
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    QODBCDriverPrivate* d;
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    friend class QODBCPrivate;
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};
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QSQL_ODBC_H