// 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