/*

* Copyright (c) 2002-2007 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Provides functions to read and write from/to long text columns.

*

*/

#ifndef POSLMLONGTEXTCOLHANDLER_H

#define POSLMLONGTEXTCOLHANDLER_H

#include <d32dbms.h>

/**

* Provides functions to read and write from/to long text columns.

*/

class PosLmLongTextColHandler

    {

    public:  // New functions

        /**

        * Reads the data of a long text column.

        *

        * @param[out] aLongText A buffer of proper size for the specified column.

        * @param[in] aView Prepared view.

        * @param[in] aCol The number of the column to read from.

        */

        IMPORT_C static void ReadFromLongTextColumnL(

            TDes& aLongText,

            RDbRowSet& aView,

            TDbColNo aCol

        );

        /**

        * Writes the specified text to a long text column.

        *

        * @param[in] aLongText The text to write.

        * @param[in] aView Prepared view.

        * @param[in] aCol The number of the column to write to.

        */

        IMPORT_C static void WriteToLongTextColumnL(

            const TDesC& aLongText,

            RDbRowSet& aView,

            TDbColNo aCol

        );

        /**

        * Reads the data of a long text column.

        *

        * @param[in] aView Prepared view.

        * @param[in] aCol The number of the column to read from.

        * @return Data from the column.

        */

        IMPORT_C static HBufC* ReadFromLongTextColumnLC(

            RDbRowSet& aView,

            TDbColNo aCol );

    };

#endif      // POSLMLONGTEXTCOLHANDLER_H