ntqsqlquery.h Include File

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# ntqsqlquery.h

This is the verbatim text of the ntqsqlquery.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    **
    ** Definition of TQSqlQuery class
    **
    ** Created : 2000-11-03
    **
    ** Copyright (C) 2005-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the sql module of the TQt GUI Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file. Alternatively you may (at your option) use any
    ** later version of the GNU General Public License if such license has
    ** been publicly approved by Trolltech ASA (or its successors, if any)
    ** and the KDE Free TQt Foundation.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/.
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** This file may be used under the terms of the Q Public License as
    ** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
    ** included in the packaging of this file.  Licensees holding valid TQt
    ** Commercial licenses may use this file in accordance with the TQt
    ** Commercial License Agreement provided with the Software.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
    ** herein.
    **
    **********************************************************************/

    #ifndef TQSQLQUERY_H
    #define TQSQLQUERY_H

    #ifndef QT_H
    #include "ntqobject.h"
    #include "ntqstring.h"
    #include "ntqvariant.h"
    #include "ntqvaluelist.h"
    #include "ntqsqlerror.h"
    #include "ntqsqlfield.h"
    #include "ntqsql.h"
    #endif // QT_H

    #ifndef TQT_NO_SQL

    class TQSqlDriver;
    class TQSqlResult;
    class TQSqlDatabase;

    class TQ_EXPORT TQSqlResultShared : public TQObject, public TQShared
    {
        TQ_OBJECT
    public:
        TQSqlResultShared( TQSqlResult* result );
        virtual ~TQSqlResultShared();
        TQSqlResult* sqlResult;
        TQString executedQuery;
    private slots:
        void slotResultDestroyed();
    };

    class TQ_EXPORT TQSqlQuery
    {
    public:
        TQSqlQuery( TQSqlResult * r );
        TQSqlQuery( const TQString& query = TQString::null, TQSqlDatabase* db = 0 );
        explicit TQSqlQuery( TQSqlDatabase* db );
        TQSqlQuery( const TQSqlQuery& other );
        TQSqlQuery& operator=( const TQSqlQuery& other );
        virtual ~TQSqlQuery();

        bool                isValid() const;
        bool                isActive() const;
        bool	        isNull( int field ) const;
        int                 at() const;
        TQString             lastQuery() const;
        int                 numRowsAffected() const;
        TQSqlError	        lastError() const;
        bool                isSelect() const;
        int                 size() const;
        const TQSqlDriver*   driver() const;
        const TQSqlResult*   result() const;
        bool		isForwardOnly() const;
        void		setForwardOnly( bool forward );

        virtual bool	exec ( const TQString& query );
        virtual TQVariant    value( int i ) const;

        virtual bool	seek( int i, bool relative = false );
        virtual bool        next();
        virtual bool        prev();
        virtual bool        first();
        virtual bool        last();

        // prepared query support
        bool		exec();
        bool		prepare( const TQString& query );
        void		bindValue( const TQString& placeholder, const TQVariant& val );
        void		bindValue( int pos, const TQVariant& val );
        void		addBindValue( const TQVariant& val );
        // remove these overloads in 4.0
        void		bindValue( const TQString& placeholder, const TQVariant& val, TQSql::ParameterType type );
        void		bindValue( int pos, const TQVariant& val, TQSql::ParameterType type );
        void		addBindValue( const TQVariant& val, TQSql::ParameterType type );
        TQVariant		boundValue( const TQString& placeholder ) const;
        TQVariant		boundValue( int pos ) const;
        TQMap<TQString, TQVariant> boundValues() const;
        TQString             executedQuery() const;

    protected:
        virtual void        beforeSeek();
        virtual void        afterSeek();

    private:
        void 		init( const TQString& query, TQSqlDatabase* db );
        void                deref();
        bool                checkDetach();
        TQSqlResultShared*   d;
    };

    #endif // TQT_NO_SQL
    #endif