Restlet URL parsing idiom question

[Mark Petrovic]

Good day.

If I have
router.attach("/sign/bind", SignResource.class);
router.attach("/sign/lookup/{sign}", SignResource.class);

what is a stylish idiom to get at the "bind" and "lookup" tokens in  
the URLs above from within the SignResource restlet?  Doing so amounts  
to enabling some finer grain routing within the restlet SignResource,  
which may or may not belie a potentially naive attempt to do too much  
in a single restlet handler.

Thanks.

Mark