/*
* Copyright (c) 2006-2007 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: Interface class to notify channelName/metadata changes CIRSongHistoryDbEngine
*
*/
#ifndef CIRSONGHISTORYENGPUBSUBNOTIFYHANDLER_H
#define CIRSONGHISTORYENGPUBSUBNOTIFYHANDLER_H
#include <e32cmn.h>
/**
* Observer interface for CIRSongHistoryEngPubSub.
* The observer is notified whenever the listened key is changed. If there was an error in getting the new value of the key,
* the observer will be notified of it as well.
*/
NONSHARABLE_CLASS(MIRSongHistoryEngPubSubNotifyHandler)
{
public:
/**
* Invoked when the listened key is changed.
* @param aCategory The category of the key that changed.
* @param aKey The key that changed.
* @param aValue The new value of the key.
*/
/*virtual void HandleChannelNameChangeL( const TUid& aCategory, TUint aKey,
const TDesC8& aText ) = 0; */
/**
* Invoked when the listened key is changed.
* @param aCategory The category of the key that changed.
* @param aKey The key that changed.
* @param aText The new value of the key.
*/
/*virtual void HandleMetaDataChangeL( const TUid& aCategory, TUint aKey,
const TDesC8& aText ) = 0; */
/**
* Invoked when the listened (property MetaData / ChannelName) key is changed.
* @param aCategory The category of the key that changed.
* @param aKey The key that changed.
* @param aText The new value of the key.
*/
virtual void HandlePropertyChangeL( const TUid& aCategory, TUint aKey,
const TDesC8& aText ) = 0;
/**
* Invoked when an error occurred while retrieving the new value of the key.
* @param aCategory The category of the key that changed.
* @param aKey The key that changed.
* @param aError The error code.
*/
virtual void HandlePropertyChangeErrorL( const TUid& aCategory,TUint aKey,
TInt aError ) = 0;
};
#endif//IR_SONGHISTORYDBENGPUBSUBNOTIFYHANDLER