/*

* Copyright (c) 2009 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: Callback interface for observer of CCentralRepositoryWatch object.

*

*/

#ifndef M_CENTRALREPOSITORYOBSERVER_H

#define M_CENTRALREPOSITORYOBSERVER_H

#include <e32def.h>

#include <e32cmn.h>

/**

 *  Callback interface for observer of CCentralRepositoryWatch object. 

 *  This callback interface has to be implemented by observer class.

 *

 *  @code

 *   ?good_class_usage_example(s)

 *  @endcode

 *

 *  @lib none.

 *  @since TB 9.2

 */

NONSHARABLE_CLASS( MCentralRepositoryObserver )

    {

public:

    /**

     * Function is called by watcher every time when key value has changed

     * in CR.

     *

     *  @since TB 9.2

     * @param aRepositoryId Changed repository. 

     * @param aRepositoryId Changed key. 

     * @return none

     */

    virtual void CentRepKeyChanged(

            TUid    aRepositoryId,

            TUint32 aId ) = 0;

    /**

     * Function is called by property watcher when reading the integer property's

     * current value fails.

     *

     *  @since TB 9.2

     * @param aRepositoryId Changed repository. 

     * @param aRepositoryId Changed key. 

     * @param aError Error code:

     *      KErrAbort if in a transaction that has previously failed, 

     *      KErrPermissionDenied if caller fails capability check, 

     *      KErrNotFound if the setting does not exist, 

     *      KErrArgument if the setting exists but is not an integer, plus other system-wide error codes. 

     * . 

     * @return none

     */

    virtual void CentRepGetKeyValueFailed( 

            TUid    aRepositoryId,

            TUint32 aId,

            TInt aError ) = 0;

    };

#endif // M_CENTRALREPOSITORYOBSERVER_H