XML to XSD

hello

if I get an XML (as a file), and I would like to map it to an RFC, I know I can do it with Java/ABAP mapping or XSLT. my Q is if it is possible to get the XML, build a suitable XSD Schema and put it in the Message Mapping source and the XSD will know how to get the XML and convert it in to object?

Thanks

Kfir