Yaf_Route_Interface::route — route a request
Yaf_Route_Interface::route() is the only method that a custom route should implement.
since of 2.3.0, there is another method should also be implemented, see Yaf_Route_Interface::assemble().
if this method return
TRUE, then the route process will be end. otherwise,
Yaf_Router will call next route in the route stack
to route request.
This method should also call Yaf_Request_Abstract::setRouted() to make the request routed at last.
A Yaf_Request_Abstract instance.