1 // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __LOGSERVDATABASECHANGEINTERFACE_H__

    17 #define __LOGSERVDATABASECHANGEINTERFACE_H__

    18 

    19 #include "LogServDatabaseChangeObserver.h"

    20 #include "LogChangeDefinition.h"

    21 

    22 

    23 /////////////////////////////////////////////////////////////////////////////////////////

    24 // -----> MLogServDatabaseChangeInterface (header)

    25 /////////////////////////////////////////////////////////////////////////////////////////

    26 /**

    27 @internalComponent

    28 */

    29 class MLogServDatabaseChangeInterface

    30 	{

    31 /////////////////////////////////////////////////////////////////////////////////////////

    32 public: // ENUMERATIONS

    33 /////////////////////////////////////////////////////////////////////////////////////////

    34 

    35 /////////////////////////////////////////////////////////////////////////////////////////

    36 public: // FROM MLogServDatabaseChangeInterface

    37 /////////////////////////////////////////////////////////////////////////////////////////

    38 

    39 	/**

    40 	 * Submit some contextual information to the change interface so that it can

    41 	 * intelligently notify observers about a batch of updates

    42 	 */

    43 	virtual void DCISubmitChangedEventContextL(TLogDatabaseChangeType aType, TLogId aEventId) = 0;

    44 

    45 	/**

    46 	 * Submit some global information about a change. This isn't specific to an event

    47 	 * but may include changes such as 'a backup is starting/ending' or 'the log

    48 	 * has been cleared' etc.

    49 	 */

    50 	virtual void DCISubmitGlobalChangeContextL(TUid aChangeType, TInt aContextParam1 = 0, TInt aContextParam2 = 0, TInt aContextParam3 = 0) = 0;

    51 

    52 /////////////////////////////////////////////////////////////////////////////////////////

    53 public: // FROM MLogServDatabaseChangeInterface

    54 /////////////////////////////////////////////////////////////////////////////////////////

    55 

    56 	/** 

    57 	 * Request change notifications

    58 	 */

    59 	virtual void DCIRequestChangeNotificationsL(MLogServDatabaseChangeObserver& aObserver) = 0;

    60 

    61 	/**

    62 	 * Cancel change notification request

    63 	 */

    64 	virtual void DCIRequestChangeNotificationsCancel(MLogServDatabaseChangeObserver& aObserver) = 0;

    65 	};

    66 

    67 

    68 #endif