os/persistentdata/loggingservices/eventlogger/LogServ/inc/LogServDatabaseChangeInterface.h
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
     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