/*

* 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:  

*

*/

#ifndef C_HNDATACHANGEOBSERVER_H

#define C_HNDATACHANGEOBSERVER_H

class CHnItemId;

/**

 * @ingroup group_hnengine

 * Data change observer interface. It is used to notify the implementing class that something in the database has been changed.

 *

 * @lib hnengine

 * @since S60 v5.0 

 */

NONSHARABLE_CLASS(CHnDataChangeObserver) : public CBase

    {    

    public:

    /**

     * DataChangeL is called when sth in database was changed.

     * @since S60 v5.0

     * @param aItemIds Array with ItemIds of changed entries.

     */

    virtual void DataChangedL( RPointerArray< CHnItemId >& aItemIds ) = 0;

    };

#endif // C_HNDATACHANGEOBSERVER_H