diff -r 000000000000 -r bde4ae8d615e os/persistentdata/loggingservices/eventlogger/LogServ/inc/LogServDatabaseTransactionInterface.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/persistentdata/loggingservices/eventlogger/LogServ/inc/LogServDatabaseTransactionInterface.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,71 @@
+// 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 __LOGSERVDATABASETRANSACTIONINTERFACE_H__
+#define __LOGSERVDATABASETRANSACTIONINTERFACE_H__
+
+#include <d32dbms.h>
+#include "LogServShared.h"
+#include "logservsecurity.h"
+
+// Classes referenced
+class CLogServCacheTypes;
+class CLogServCacheConfig;
+class CLogServCacheStrings;
+class CLogServResourceInterpreter;
+class MLogServDatabaseChangeInterface;
+
+/**
+Interface class offering methods for:
+ - beginning, committing and rolling back a transaction;
+ - accessors to config, types and strings caches;
+ - accessors to the resource interpreter and and the change interface;
+ 
+@see CLogServResourceInterpreter  
+@see MLogServDatabaseChangeInterface
+@see CLogServCacheStrings
+@see CLogServCacheTypes
+@see CLogServCacheConfig
+@internalComponent
+*/
+class MLogServDatabaseTransactionInterface
+	{
+public:
+	virtual TInt DTIBegin() = 0;//Start a new transaction
+	virtual TInt DTICommitAndEnd() = 0;//End an existing transaction
+	virtual void DTIRollBack() = 0;//Roll back the current transaction
+	virtual TInt DTIExecuteSql(const TDesC& aStatement, TDbTextComparison aComparison = EDbCompareNormal) = 0;//Run some arbitrary SQL
+	virtual TBool DTIInTransaction() const = 0;//Is the database in an existing transaction
+	virtual TBool DTIDatabaseIsDamaged() const = 0;//Is the database in an existing transaction
+
+	virtual CLogServResourceInterpreter& DTIResourceInterface() const = 0;//Access the resource interface
+	virtual MLogServDatabaseChangeInterface& DTIChangeInterface() const = 0;//Acess the change submission interface
+	virtual CLogServCacheStrings& DTICacheStrings() const = 0;//Access the string table cache
+	virtual CLogServCacheTypes& DTICacheTypes() const = 0;//Access the type table cache
+	virtual CLogServCacheConfig& DTICacheConfig() const = 0;//Access the config table cache
+	virtual RDbDatabase& DTIDatabase() = 0;//Access the database
+	
+	virtual TBool DTIIsAllowed(TEventOp aEventOp, const RMessage2& aMessage, TUid aEventType, const char* aDiagnostic = 0) const = 0;//Check client capability
+	virtual const RArray<TUid>& DTIUidsOfStandardTypes() = 0;//Returns a collection of built-in TUids of built-types - those defined in Logwrap.rss
+
+	void DTIBeginWithRollBackProtectionLC();//Start a transaction with roll-back protection (cleanup)
+	void DTICommitAndCancelRollbackProtectionL();//End a transaction previously started with roll-back protection
+
+private:
+	static void RollBackDatabase(TAny* aObject);
+
+	};
+
+#endif