diff -r 000000000000 -r bde4ae8d615e os/persistentdata/persistentstorage/store/pcstore/src/desheader.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/persistentdata/persistentstorage/store/pcstore/src/desheader.h	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,75 @@
+// Copyright (c) 2006-2009 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:
+//
+
+#if !defined(__DESHEADER_H__)
+#define __DESHEADER_H__
+
+#include <pcstore/pcstoredef.h>
+
+namespace PCStore
+{
+class CStoreWriteStream;
+class CStoreReadStream;
+class CDes8;
+class CDes16;
+
+/**
+@internalComponent
+
+Compact stream format for positive integer values in the range 0 to 536,870,911 ((2^29)-1). Values 
+in the range 0-127 are stored in a single byte, 128-16383 in two bytes and other values in 4 bytes.
+
+The class provides conversion to and from TInt, and both externalization and internalization functions. 
+*/
+class TCardinality
+	{
+public:
+	TCardinality(): iCount(0) {};
+	TCardinality(TInt aCount);
+
+	void Externalize(CStoreWriteStream& aStream) const;
+	void Internalize(CStoreReadStream& aStream);
+	operator TInt() const;
+
+private:
+	TUint iCount;
+	};
+
+/**
+@internalComponent
+
+Class for the header information of CDes8 and CDes16.
+
+The header information of CDes8 and CDes16 includes the data width (8 or 16 bits) and length. 
+This class forms the header information from the given CDes8 or CDes16 data and stores it into 
+a TCardinality object.  It also provides the member functions to externalize / internalize 
+itself to / from a stream.
+*/
+class CDesHeader
+	{
+public:
+	CDesHeader() {}
+	CDesHeader(const CDes8& aDes8);
+	CDesHeader(const CDes16& aDes16);
+
+	void Externalize(CStoreWriteStream& aStream) const;
+	void Internalize(CStoreReadStream& aStream);
+	TInt Length() const;
+
+private:
+	TCardinality iVal;
+	};
+}
+#endif // !defined(__DESHEADER_H__)