/*

* Copyright (c) 2007-2008 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:  Interface for requesting data from the provider

*

*/

#ifndef I_MULMODELPROVIDER_H

#define I_MULMODELPROVIDER_H

namespace Alf

    {

// Forward Declarations

class MulVisualItem;

class MulDataPath;

/*! @class IMulModelProvider

 *  @brief An interface for requesting the data provider for data.

 *

 *  Application should implement this interface inorder to become a data provider. 

 *  Data model uses this interface to ask the application for data. 

 *

 */

class IMulModelProvider

    {

public:

    /**

     * Request the data provider for updating data in the model.

     *

     * @param aIndex Index at which the item request has been initiated.

     * @param aCount Number of items requested.

     * @param aPath  Path of parent item in the data hierarchy.

     */ 

    virtual void ProvideData( int aIndex, int aCount, MulDataPath aPath ) = 0;

    };

} // namespace Alf

#endif // I_MULMODELPROVIDER_H

//End of file