/*

* 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_NCDPROVIDEROBSERVER_H

#define M_NCDPROVIDEROBSERVER_H

#include <e32cmn.h>

#include "catalogsarray.h"

class MNcdNode;

/**

 * Observer interface for provider generic events

 *

 * Provider users should implement this interface to be able to receive

 * notifications from the root node provider

 */

class MNcdProviderObserver

    {

public:

    /**

     * Called when information of expired nodes has been received. Users must

     * re-load these nodes to get updated data.

     *

     * @param aExpiredNodes A list of expired nodes in need of re-loading.

     */

    virtual void ForceExpirationInformationReceived(

        RCatalogsArray< MNcdNode >& aExpiredNodes ) = 0;

    };

#endif //  M_NCDPROVIDEROBSERVER_H