/*

* Copyright (c) 2006 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:  

*

*/

#ifndef M_NCDSTORAGEITEMDATA_H

#define M_NCDSTORAGEITEMDATA_H

#include <s32strm.h> // RWriteStream, RReadStream

/**

 * Interface for database items.

 *

 * All items that are added to the database storage must implement this

 *

 * @note Do not try to use the database from ExternalizeL or InternalizeL since

 * it leads to a DBMS-Table 11 panic.

 *  

 */

class MNcdStorageDataItem

{

public:

    /**

     * Writes the implementing object's data to the stream

     *

     * @param aStream Write stream

     */

    virtual void ExternalizeL( RWriteStream& aStream ) = 0;

    /**

     * Reads the implementing object's data from the stream

     * 

     * @param aStream Read stream

     */

    virtual void InternalizeL( RReadStream& aStream ) = 0;

protected:

    virtual ~MNcdStorageDataItem()

        {

        }

};

#endif // M_NCDSTORAGEITEMDATA_H