Metadata Extention for Dynamic Property Values

We need to get dynamic values on XML Form based on the logged in user. Implemented a Metadata Extension class for this purpose. Followed the link in SDN to create the service and required classes : http://www.sdn.sap.com/irj/scn/index?rid=/library/uuid/645d4357-0701-0010-07bd-a2ea8c4d0aaf
Used the following code to get the user id:
IResourceContext rc = metaContext.getResourceContext();
com.sapportals.portal.security.usermanagement.IUser usr = rc.getUser();
portalUID = usr.getUMEUser().getUniqueName();
However, portalUID is coming as "CMADMIN_SERVICE" instead of logged-in userid. Please note that the property created for this purpose is a Multi-value allowed and displaying the values in a Combo box.
Questions:
How do we get the logged-in user ID
Noticed that this class is getting executed when clicked on Save of XML Form (during runtime); Is there a way to avoid it?
All together, is there any other approach to get dynamic values to be displayed in XML Form?
Any help is greatly appreciated...
Thanks

Hi Ranganath,
I see...
In that case, I can only suggest the direction I would take, since I didn't do it myself:
The above example uses the property renderer 'multi_dependence'.
I would try to find its implementing class, decompile it, and see if it gives any clues rergarding to how to implement your case.
Hope that helps,
Yoav.

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[http://wow.telenet.be/delaware/property0.jpg]
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Edited by: Frederik-Jan Roose on Apr 1, 2008 11:33 AM

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