I have something like

public class Controller {
    [Observer("fetchEmployeesEvent")]
    public function fetchEmployees() : void {
        //doSomething
    }
}

and I want something like

public class Controller {

    public static const FETCH_EMPLOYEES_EVENT : String = "fetchEmployeesEvent";

    [Observer(FETCH_EMPLOYEES_EVENT)]
    public function fetchEmployees() : void {
        //doSomething
    }
}

My problem is that only the first code snippet works. Flex seems to ignore the constant FETCH_EMPLOYEES_EVENT in the metadata-tag.

My question is: Is it somehow possible to use constant strings in metadata?