diff -r 000000000000 -r 2e3d3ce01487 tzservices/tzserver/Server/Include/tzuserdata.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tzservices/tzserver/Server/Include/tzuserdata.h	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,105 @@
+// Copyright (c) 2008-2009 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 __TZUSERDATA_H__
+#define __TZUSERDATA_H__
+
+#include <sqldb.h>
+#include <vtzrules.h>
+
+class CTzUserNames;
+class RProperty;
+
+enum TTzUserDataChangeOp
+    {
+    ETzUserDataCreated,  // User defined TZ data has been created.
+    ETzUserDataUpdated,  // User defined TZ data has been updated.
+    ETzUserDataDeleted,  // User defined TZ data has been deleted.
+    ETzUserDataRestored, // User defined TZ data has been restored.
+    };
+
+struct TTzUserDataChange
+    {
+    // Operation that has changed user defined TZ data.
+    TTzUserDataChangeOp iOperation;
+
+    // Numeric TZID of the changed user defined TZ data.
+    TInt iTzId;
+    };
+
+class MTzUserDataChangeObserver
+    {
+public:
+    virtual void NotifyUserTzRulesChange(TTzUserDataChange aChange) = 0;
+    virtual void NotifyUserTzNamesChange(TTzUserDataChange aChange) = 0;
+    };
+
+class CTzUserDataDb : public CBase
+    {
+public:
+    static CTzUserDataDb* NewL();
+ 	~CTzUserDataDb();
+ 	
+ 	void AddObserverL(MTzUserDataChangeObserver* aChangeObs);
+ 	void RemoveObserver(MTzUserDataChangeObserver* aChangeObs);
+ 	
+// CRUD operations.
+    TInt CreateTzL(const CTzRules& aTzRules, const CTzUserNames& aTzNames);
+    void ReadTzRulesL(CTzRules& aRules, TUint aTzId);
+    CTzUserNames* ReadTzNamesL(TUint aTzId);
+ 	void ReadTzIdsL(RArray<TUint32>& aTzIds);
+	void UpdateTzL(TUint aTzId, const CTzRules& aTzRules, const CTzUserNames& aTzNames);
+    void DeleteTzL(TUint aTzId);
+    
+// Check if a given user ID exists in the database    
+	TBool IsIdInDbL(TUint aTzId);
+	
+// Backup and restore operations.
+    void BackupBeginningL();
+    void BackupCompletedL();
+    void RestoreBeginningL();
+    void RestoreCompletedL();
+ private:
+    CTzUserDataDb();
+    void ConstructL();
+	
+// Database operations.
+    void OpenL();	
+    void CreateL();
+    void CreateSchemaL();
+    void Close();
+	
+// Transaction operations.
+    void BeginTransactionL();
+    void CommitTransactionL();
+    void RollbackTransaction();
+    static void CleanupDatabaseRollback(TAny* aDatabase);
+
+// Notification operations.
+    void NotifyTzRulesChange(TUint aTzId, TTzUserDataChangeOp aChangeOp);
+    void NotifyTzNamesChange(TUint aTzId, TTzUserDataChangeOp aChangeOp);
+    
+// Reuse TZ IDs
+    TUint32 FindUnusedTzIdL();
+     
+ private:
+ 	RSqlDatabase iDatabase;
+    TBool iBackupInProgress;
+    TBool iRestoreInProgress;
+    TUint32 iNextCandidateTzId;  
+    RPointerArray<MTzUserDataChangeObserver> iChangeObservers;
+    };
+
+#endif // __TZUSERDATA_H__