// Copyright (c) 2002-2009 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:

//

#ifndef __LOGSERVTASKINTERFACE_H__

#define __LOGSERVTASKINTERFACE_H__

#include <logwrap.h>

// Classes referenced

class TLogConfig;

class TLogTransferWindow;

class CLogEvent;

class CLogEventType;

class CLogServViewBase;

/**

An interface class for starting a LogEng operation.

Every time when CLogServOperationQueue::RunL() takes the execution control, an operation will be picked up

from the pending queue and the StartL() method of the operation - called, for example: 

CLogServOpEventAdd::StartL(). The operation's StartL() method will read the client data and calls an

appropriate method from this interface - TaskEventAddL() for example. 

@see CLogServOperationQueue 

@internalComponent

*/

class MLogServTaskInterface

{

public:

	/** 

	 * Event tasks

	 */

	virtual void TaskEventAddL(TRequestStatus& aStatus, CLogEvent& aEvent, const RMessage2& aMessage) = 0;

	virtual void TaskEventChangeL(TRequestStatus& aStatus, const CLogEvent& aEvent, const RMessage2& aMessage) = 0;

	virtual void TaskEventGetL(TRequestStatus& aStatus, CLogEvent& aEvent, const RMessage2& aMessage) = 0;

	virtual void TaskEventDeleteL(TRequestStatus& aStatus, TLogId aId, const RMessage2& aMessage) = 0;

	/** 

	 * Event type tasks

	 */

	virtual void TaskEventTypeAddL(TRequestStatus& aStatus, const CLogEventType& aEventType) = 0;

	virtual void TaskEventTypeGetL(TRequestStatus& aStatus, const CLogEventType*& aEventType, TUid aUid) = 0;

	virtual void TaskEventTypeChangeL(TRequestStatus& aStatus, const CLogEventType& aEventType) = 0;

	virtual void TaskEventTypeDeleteL(TRequestStatus& aStatus, TUid aType) = 0;

	/**

	 * Configuration tasks

	 */

	virtual void TaskConfigGetL(TRequestStatus& aStatus, TLogConfig& aConfig) = 0;

	virtual void TaskConfigChangeL(TRequestStatus& aStatus, const TLogConfig& aConfig) = 0;

	/**

	 * Clearing tasks

	 */

	virtual void TaskClearLogL(TRequestStatus& aStatus, const TTime& aDate

#ifdef SYMBIAN_ENABLE_EVENTLOGGER_DUALSIM	

			, TSimId aSimId

#endif			

			) = 0;

	virtual void TaskClearRecentL(TRequestStatus& aStatus, TInt aRecentList

#ifdef SYMBIAN_ENABLE_EVENTLOGGER_DUALSIM	

			, TSimId aSimId

#endif

			) = 0;

	/**

	 * Maintenance tasks

	 */

	virtual void TaskMaintenanceStartL(TRequestStatus& aStatus, TBool aPurge) = 0;

	/**

	 * Window building tasks

	 */ 

	virtual void TaskBuildWindowL(TRequestStatus& aStatus, const CLogServViewBase& aView, 

                                  const TLogTransferWindow& aWindow, const RMessage2& aMessage) = 0;

	/**

	 * Cancellation

	 */

	virtual void TaskCancelCurrent() = 0;

};

#endif