Using XML as model in Rails App

Hi

I am aware of the ability of Rails to push out XML from the model. Is
it possible to use an XML file as a model itself, i.e. use
ActiveRecord to provide something like ORM over an XML resource?

I have googled this, but can’t seem to find anything (probably looking
in the wrong places). If anybody could provide pointers that would be
great.

Cheers

Clive