// 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 __LOGSERVBACKUPINTERFACE_H__

#define __LOGSERVBACKUPINTERFACE_H__

#include <e32std.h>

// Classes referenced

class MLogServBackupObserver;

/**

Typedefs

@internalComponent

*/

typedef TInt TLogServBackupPriority;

/////////////////////////////////////////////////////////////////////////////////////////

// -----> MLogServBackupInterface (header)

/////////////////////////////////////////////////////////////////////////////////////////

/**

@internalComponent

*/

class MLogServBackupInterface

	{

public:

	enum TLogServBackupState

		{

		ELogServBackupStateIdle = 0,

		ELogServBackupStateBackupInProgress

		};

	enum TLogBackupStandardNotificationPriorities

		{

		// The first object that will be told a backup is starting (and the last

		// to be told that a backup has ended).

		ELogBackupPriorityFirstToBeNotified = 1000,

		// The last object to be told that a backup is starting (but the first

		// to be told that it has ended).

		ELogBackupPriorityLastToBeNotified = -1000,

		// Individual object priorities. Not terribly nice really...

		EObjectDatabaseDriver = ELogBackupPriorityFirstToBeNotified,

		EObjectViewLock = EObjectDatabaseDriver - 1,

		EObjectView = EObjectViewLock - 1,

		EObjectClientChangeNotifications = EObjectView - 1,

		EObjectChangeTracker = EObjectClientChangeNotifications -1,

		// Must be last, since it must close the database after everything

		// has stopped using it.

		EObjectDatabaseMarshall = ELogBackupPriorityLastToBeNotified,

		};

public: // Observer interaction

	virtual void BIObserverAddL(MLogServBackupObserver& aObserver, TLogServBackupPriority aPriority) = 0;

	virtual void BIObserverRemove(MLogServBackupObserver& aObserver) = 0;

public: // Enquiry interface

	virtual TLogServBackupState BIState() const = 0;

	virtual TInt BIErrorValueForCurrentState() const = 0;

	void BIValidateStateForDatabaseOperationL();

public: // Misc

	virtual void BISetDatabaseNameL(const TDesC& aDatabaseName) = 0;

	};

#endif