/*

* Copyright (c) 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:  This is the header for the Diagnostics Logs Event Eraser

*                 Observer class, which clients implement to receive events

*                 from the Event Eraser.

*

*/

#ifndef DIAGLOGEVENTERASEROBSERVER_H

#define DIAGLOGEVENTERASEROBSERVER_H

// Forward Declarations

class CLogEvent;

/**

* Diagnostics Plugin Log Event Eraser Observer

*   

* This is a pure virtual class that clients of the Event Eraser must implement

* to receive callbacks from the Log Event Eraser.

*/

class MDiagLogEventEraserObserver

    {

public: // New functions

    /**

    * This function is called to check if the log event needs to be deleted.

    *

    * @param aEvent The event to check.

    * @return ETrue if the log event should be deleted, EFalse otherwise.

    */

    virtual TBool IsEventToBeDeleted( const CLogEvent& aEvent ) = 0;

    /**

    * This function is called to notify that the erase operation is complete.

    *

    * @param aError Error code to indicate erase failure, or KErrNone.

    */           

    virtual void CompleteEventEraseL( TInt aError ) = 0;

    };

#endif // DIAGLOGEVENTERASEROBSERVER_H