/*

* 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:   Node load operation interface definition

*

*/

#ifndef M_NCDLOADNODEOPERATION_H

#define M_NCDLOADNODEOPERATION_H

#include <e32cmn.h>

#include "ncdoperation.h"

#include "catalogsarray.h"

#include "ncdinterfaceids.h"

class MNcdLoadNodeOperationObserver;

/**

 *  Load node operation interface.

 *

 *  Load node operations handle the loading of one or more nodes from a server.

 *  One typical use case is the loading of a catalog's child nodes.

 *  

 *  Node load operations send callbacks when one ore more nodes have been

 *  loaded. This can be used to display the loaded nodes even if the whole

 *  operation has not yet completed.

 *  

 *  

 *  @see MNcdNode

 *  @see MNcdLoadNodeOperationObserver

 */

class MNcdLoadNodeOperation : public MNcdOperation

    {

public:

    /**

     * Unique identifier for the interface, required for all MCatalogsBase interfaces.

     *

     * 

     */

    enum { KInterfaceUid = ENcdLoadNodeOperationUid };

protected:

    /**

    * Destructor.

    *

    * @see MCatalogsBase::~MCatalogsBase

    */

    virtual ~MNcdLoadNodeOperation() {}

    };

#endif //  M_NCDLOADNODEOPERATION_H