diff -r 000000000000 -r 2e3d3ce01487 tzservices/tzserver/Server/Source/tzuserdatacache.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tzservices/tzserver/Server/Source/tzuserdatacache.cpp	Tue Feb 02 10:12:00 2010 +0200
@@ -0,0 +1,104 @@
+// 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:
+//
+#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS
+#include <tzusernames.h>
+#include <tzuserdefineddata.h>
+#endif
+#include "tzuserdatacache.h"
+
+/**
+When the data of a user defined rules, names and IDs are sent from the server
+to the client, the size of the data is requested first and then, the client can 
+create a data buffer and send it to the server to fill the data.
+
+Therefore, some client-server calls (e.g. CTzUserData::ReadRulesL(),
+CTzUserData::ReadNamesL(), CTzUserData::GetTzIdsL() must be carried out in two
+steps:
+
+- Get the size of the data to allow client to create data buffer
+- Get the data using this buffer
+
+The class CTzUserDataCache is for:
+
+- Find the data size
+- Cache the data
+- Retrieve cached data
+*/	
+
+CTzUserDataCache::CTzUserDataCache()
+	 :iNames(NULL)
+	{
+	}
+
+CTzUserDataCache* CTzUserDataCache::NewL()
+	{
+	CTzUserDataCache* self = new (ELeave) CTzUserDataCache();
+	return self;
+	}
+	
+CTzUserDataCache::~CTzUserDataCache()
+	{
+	Reset();
+	iIds.Close();
+	}
+
+void CTzUserDataCache::SetNames(CTzUserNames* aNames)
+  	{
+ 	delete iNames;
+  	iNames = aNames;
+  	}
+
+void CTzUserDataCache::SetIdsL(const RArray<TUint32>& aIds)
+	{
+	iIds.Reset();
+	for(TInt ii=0;ii<aIds.Count();++ii)
+		{
+		iIds.AppendL((aIds)[ii]);
+		}
+	}
+	
+TInt CTzUserDataCache::SizeOfNames() const 
+	{
+	__ASSERT_DEBUG(iNames, User::Invariant());
+	if(iNames)
+		{
+		return iNames->SizeOfObject();
+		}
+	return 0;
+	}
+
+const CTzUserNames& CTzUserDataCache::GetNames() const
+	{
+	__ASSERT_DEBUG(iNames, User::Invariant());
+	return *iNames;
+	}
+	
+const TArray<TUint32> CTzUserDataCache::GetIds() const
+	{
+	return iIds.Array();
+	}
+	
+TInt CTzUserDataCache::SizeOfIds() const
+	{
+	return  (iIds.Count()+1) * sizeof (TInt);	
+	}
+	
+void CTzUserDataCache::Reset()
+	{
+	delete iNames;
+	iNames = NULL;
+	iIds.Reset();
+	}
+