You can't. :-)
And I think this one is not JBossXB based,
hence you're not able to use SchemaPrinter from the XB project. :-(
But otoh, the schema is pretty simple,
see the example here:
http://www.jboss.org/community/docs/DOC-13178
View the original post :
http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4245031#...
Reply to the post :
http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...