Of course this came to me last night as I was just about to go to sleep. Ok, what I mean here is just like in core Java Collections. I can create a Map or List without putting any values into the collection, and I was hoping that that could also happen through the MetaValueFactory or even a constructor of say MapCompositeValueSupport. Again this isn't a big deal, as instead of working top down to load the data, I have it working inside out. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4128815#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...