--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/presencecache/inc/cacheobjecthelpers.inl	Tue Feb 02 10:12:17 2010 +0200
@@ -0,0 +1,70 @@
+/*
+* 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
+*
+*/
+
+
+#include <e32base.h>
+
+
+// -----------------------------------------------------------------------------
+// TCacheObjectPacker::PackL() implementation.
+// -----------------------------------------------------------------------------
+//
+template< class T >
+HBufC8* TCacheObjectPacker<T>::PackL( const T& aObj )
+	{
+    // we don't know how large the returned descriptor is going to be
+    CBufFlat* packBuf = CBufFlat::NewL( KObjectBufGranurality );
+    CleanupStack::PushL( packBuf );
+
+    RBufWriteStream ws;
+    ws.Open( *packBuf ); // CSI: 65 #
+    CleanupClosePushL( ws );
+
+    aObj.ExternalizeL( ws );
+
+    ws.CommitL();
+    CleanupStack::PopAndDestroy(); //ws
+
+    // now CBufFlat contains the descriptor
+    HBufC8* packBufDesc = packBuf->Ptr(0).AllocL();
+
+    CleanupStack::PopAndDestroy( packBuf );
+    return packBufDesc;
+
+	}
+
+// -----------------------------------------------------------------------------
+// TCacheObjectPacker::UnPackL() implementation.
+// -----------------------------------------------------------------------------
+//
+template< class T >
+void TCacheObjectPacker<T>::UnPackL( T& aObj, const TDesC8& aPack )
+	{
+    if ( ! aPack.Length() )
+        {
+        // empty, don't attempt to unpack.
+        return;
+        }
+
+    RDesReadStream rs;
+    CleanupClosePushL( rs );
+    rs.Open( aPack ); // CSI: 65 #
+    aObj.InternalizeL( rs );
+    CleanupStack::PopAndDestroy(); // rs
+
+	}
+