source: trunk/include/qsqlresult.h

/****************************************************************************
**
** Definition of QSqlResult class
**
** Created : 2000-11-03
**
** Copyright (C) 2005-2007 Trolltech ASA.  All rights reserved.
**
** This file is part of the sql module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech ASA of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition licenses may use this
** file in accordance with the Qt Commercial License Agreement provided
** with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
**   information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#ifndef QSQLRESULT_H
#define QSQLRESULT_H

#ifndef QT_H
#include "qstring.h"
#include "qvariant.h"
#include "qsqlerror.h"
#include "qsqlfield.h"
#include "qsql.h"
#endif // QT_H

#if !defined( QT_MODULE_SQL ) || defined( QT_LICENSE_PROFESSIONAL )
#define QM_EXPORT_SQL
#else
#define QM_EXPORT_SQL Q_EXPORT
#endif

#ifndef QT_NO_SQL

class QSqlDriver;
class QSql;
class QSqlResultPrivate;
class QSqlExtension;

class QM_EXPORT_SQL QSqlResult
{
friend class QSqlQuery;
friend class QSqlResultShared;
public:
    virtual ~QSqlResult();
    
    // BCI HACK - remove in 4.0
    void            setExtension( QSqlExtension * ext );
    QSqlExtension * extension();

protected:
    QSqlResult(const QSqlDriver * db );
    int             at() const;
    QString         lastQuery() const;
    QSqlError       lastError() const;
    bool            isValid() const;
    bool            isActive() const;
    bool            isSelect() const;
    bool            isForwardOnly() const;
    const QSqlDriver* driver() const;
    virtual void    setAt( int at );
    virtual void    setActive( bool a );
    virtual void    setLastError( const QSqlError& e );
    virtual void    setQuery( const QString& query );
    virtual void    setSelect( bool s );
    virtual void    setForwardOnly( bool forward );

    virtual QVariant data( int i ) = 0;
    virtual bool    isNull( int i ) = 0;
    virtual bool    reset ( const QString& sqlquery ) = 0;
    virtual bool    fetch( int i ) = 0;
    virtual bool    fetchNext();
    virtual bool    fetchPrev();
    virtual bool    fetchFirst() = 0;
    virtual bool    fetchLast() = 0;
    virtual int     size() = 0;
    virtual int     numRowsAffected() = 0;
private:
    QSqlResultPrivate* d;
    bool forwardOnly;

private:        // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
    QSqlResult( const QSqlResult & );
    QSqlResult &operator=( const QSqlResult & );
#endif
};

#endif  // QT_NO_SQL
#endif