sl@0: // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #ifndef __LOGSERVDATABASECHANGEINTERFACE_H__
sl@0: #define __LOGSERVDATABASECHANGEINTERFACE_H__
sl@0: 
sl@0: #include "LogServDatabaseChangeObserver.h"
sl@0: #include "LogChangeDefinition.h"
sl@0: 
sl@0: 
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: // -----> MLogServDatabaseChangeInterface (header)
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: /**
sl@0: @internalComponent
sl@0: */
sl@0: class MLogServDatabaseChangeInterface
sl@0: 	{
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: public: // ENUMERATIONS
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: 
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: public: // FROM MLogServDatabaseChangeInterface
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: 
sl@0: 	/**
sl@0: 	 * Submit some contextual information to the change interface so that it can
sl@0: 	 * intelligently notify observers about a batch of updates
sl@0: 	 */
sl@0: 	virtual void DCISubmitChangedEventContextL(TLogDatabaseChangeType aType, TLogId aEventId) = 0;
sl@0: 
sl@0: 	/**
sl@0: 	 * Submit some global information about a change. This isn't specific to an event
sl@0: 	 * but may include changes such as 'a backup is starting/ending' or 'the log
sl@0: 	 * has been cleared' etc.
sl@0: 	 */
sl@0: 	virtual void DCISubmitGlobalChangeContextL(TUid aChangeType, TInt aContextParam1 = 0, TInt aContextParam2 = 0, TInt aContextParam3 = 0) = 0;
sl@0: 
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: public: // FROM MLogServDatabaseChangeInterface
sl@0: /////////////////////////////////////////////////////////////////////////////////////////
sl@0: 
sl@0: 	/** 
sl@0: 	 * Request change notifications
sl@0: 	 */
sl@0: 	virtual void DCIRequestChangeNotificationsL(MLogServDatabaseChangeObserver& aObserver) = 0;
sl@0: 
sl@0: 	/**
sl@0: 	 * Cancel change notification request
sl@0: 	 */
sl@0: 	virtual void DCIRequestChangeNotificationsCancel(MLogServDatabaseChangeObserver& aObserver) = 0;
sl@0: 	};
sl@0: 
sl@0: 
sl@0: #endif