public @interface RouteParam

Binds a constructor or static-factory parameter to a path variable or query parameter from an incoming deep link.

Used together with Route. The build-time route processor inspects each annotated parameter and generates dispatch code that pulls the value out of the matched URL before invoking the constructor or factory.

@Route("/users/:id")
public class ProfileForm extends Form {
    public ProfileForm(@RouteParam("id") String id) { ... }
}

@Route("/search")
public static Form search(@RouteParam("q") String query,
                          @RouteParam(value = "page", required = false) String page) { ... }

The value is matched first against named path variables (:name) and then against query-string keys. The annotation is required on every parameter the framework should bind; unannotated parameters are an error at build time.