1 /*

     2 * Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Interface for requesting data from the provider

    15 *

    16 */

    17 

    18 

    19 #ifndef I_MULMODELPROVIDER_H

    20 #define I_MULMODELPROVIDER_H

    21 

    22 namespace Alf

    23     {

    24 

    25 // Forward Declarations

    26 class MulVisualItem;

    27 class MulDataPath;

    28 

    29 /*! @class IMulModelProvider

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

    31  *

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

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

    34  *

    35  */

    36 class IMulModelProvider

    37     {

    38 public:

    39 

    40     /**

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

    42      *

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

    44      * @param aCount Number of items requested.

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

    46      */ 

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

    48             

    49     };

    50 

    51 

    52 } // namespace Alf

    53 

    54 #endif // I_MULMODELPROVIDER_H

    55 

    56 //End of file

    57