1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  This is the header for the Diagnostics Logs Event Eraser

    15 *                 Observer class, which clients implement to receive events

    16 *                 from the Event Eraser.

    17 *

    18 */

    19 

    20 

    21 #ifndef DIAGLOGEVENTERASEROBSERVER_H

    22 #define DIAGLOGEVENTERASEROBSERVER_H

    23 

    24 // Forward Declarations

    25 class CLogEvent;

    26 

    27 /**

    28 * Diagnostics Plugin Log Event Eraser Observer

    29 *   

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

    31 * to receive callbacks from the Log Event Eraser.

    32 */

    33 class MDiagLogEventEraserObserver

    34     {

    35 

    36 public: // New functions

    37 

    38     /**

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

    40     *

    41     * @param aEvent The event to check.

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

    43     */

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

    45     

    46     /**

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

    48     *

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

    50     */           

    51     virtual void CompleteEventEraseL( TInt aError ) = 0;

    52 

    53     };

    54 

    55 #endif // DIAGLOGEVENTERASEROBSERVER_H