diff -r 000000000000 -r e686773b3f54 presencecache/inc/cacheobjecthelpers.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/presencecache/inc/cacheobjecthelpers.h	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,81 @@
+/*
+* Copyright (c) 2008 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:  Templated algorithms to simplify object handling
+*
+*/
+
+#ifndef PRESENCECACHEOBJECTHELPERS_H
+#define PRESENCECACHEOBJECTHELPERS_H
+
+#include <s32mem.h>
+
+
+const TInt KObjectBufGranurality = 100;
+
+
+
+
+/**
+ * Templated object packer.
+ *
+ * Object type must support: NewLC(),
+ * ExternalizeL() and InternalizeL().
+ *
+ * @since S60 v3.2
+ */
+template< class T >
+class TCacheObjectPacker
+    {
+ public:
+
+    /**
+     * Templated method to pack object.
+     *
+     * Packs given object data to flat buffer and
+     * returns buffer to caller.
+     *
+     * @param aObj Templated object to pack.
+     *             Object type must support ExternalizeL() method.
+     *
+     * @return Buffer containing externalized object data.
+     *         Buffer ownership is returned to caller.
+     */
+    static inline HBufC8* PackL( const T& aObj );
+
+
+
+    /**
+     * Templated method to unpack object.
+     *
+     * Extracts object data from given flat buffer and
+     * returns objects ownership to caller.
+     *
+     * @param aObj Object which data to internalize from package.
+     *             Concrete object type must support InternalizeL() method.
+     *
+     * @Param aPack Buffer containing object data.
+     */
+    static void UnPackL( T& aObj,
+                         const TDesC8& aPack );
+
+private:   //Prohibited constructor
+    TCacheObjectPacker();
+
+    };
+
+
+#include "cacheobjecthelpers.inl"
+
+
+#endif // PRESENCECACHEOBJECTHELPERS_H