/*

* Copyright (c) 2003 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:  This file contains the header file of the MCbsMcnObserver class.

*

*                MCbsMcnObserver is a mix-in class, which must be implemented

*                by a MCN client class. 

*

*                The sole method of this interface gets called when the MCN state

*                changes. This occurs when a MCN message is received from network

*                and the cell information relayed by the message differs from 

*                the previous cell information.

*

*/

#ifndef MCBSMCNOBSERVER_H

#define MCBSMCNOBSERVER_H

// FORWARD DECLARATIONS

class TCbsMcnMessage;

//  CLASS DECLARATION

/**

*   An interface class for MCN observers.

*

*   A class on the client side is required to derive from this class

*   and register itself to an instance of CMcn.

*/

class MCbsMcnObserver

    {

public:             // New functions

    /**

    *   This method is called when a message of a subscribed topic 

    *   is received from the network.

    *

    *   @param  aMcnMessage         MCN message received from the network.

    *   @return                     Result code

    */

    virtual TInt CellInfoChanged( const TCbsMcnMessage& aMcnMessage ) = 0;    

    /**

    *   Virtual destructor.

    */

    virtual ~MCbsMcnObserver() {};

    };

#endif      // __MCBSMCNOBSERVER_H

// End of File