os/persistentdata/loggingservices/eventlogger/LogServ/inc/LogServBackupInterface.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.
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// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#ifndef __LOGSERVBACKUPINTERFACE_H__
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#define __LOGSERVBACKUPINTERFACE_H__
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#include <e32std.h>
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// Classes referenced
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class MLogServBackupObserver;
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/**
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Typedefs
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@internalComponent
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*/
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typedef TInt TLogServBackupPriority;
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/////////////////////////////////////////////////////////////////////////////////////////
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// -----> MLogServBackupInterface (header)
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/////////////////////////////////////////////////////////////////////////////////////////
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/**
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@internalComponent
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*/
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class MLogServBackupInterface
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	{
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public:
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	enum TLogServBackupState
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		{
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		ELogServBackupStateIdle = 0,
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		ELogServBackupStateBackupInProgress
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		};
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	enum TLogBackupStandardNotificationPriorities
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		{
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		// The first object that will be told a backup is starting (and the last
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		// to be told that a backup has ended).
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		ELogBackupPriorityFirstToBeNotified = 1000,
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		// The last object to be told that a backup is starting (but the first
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		// to be told that it has ended).
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		ELogBackupPriorityLastToBeNotified = -1000,
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		// Individual object priorities. Not terribly nice really...
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		EObjectDatabaseDriver = ELogBackupPriorityFirstToBeNotified,
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		EObjectViewLock = EObjectDatabaseDriver - 1,
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		EObjectView = EObjectViewLock - 1,
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		EObjectClientChangeNotifications = EObjectView - 1,
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		EObjectChangeTracker = EObjectClientChangeNotifications -1,
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		// Must be last, since it must close the database after everything
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		// has stopped using it.
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		EObjectDatabaseMarshall = ELogBackupPriorityLastToBeNotified,
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		};
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public: // Observer interaction
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	virtual void BIObserverAddL(MLogServBackupObserver& aObserver, TLogServBackupPriority aPriority) = 0;
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	virtual void BIObserverRemove(MLogServBackupObserver& aObserver) = 0;
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public: // Enquiry interface
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	virtual TLogServBackupState BIState() const = 0;
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	virtual TInt BIErrorValueForCurrentState() const = 0;
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	void BIValidateStateForDatabaseOperationL();
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public: // Misc
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	virtual void BISetDatabaseNameL(const TDesC& aDatabaseName) = 0;
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	};
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#endif
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