* @exception IllegalActionException If thrown by the executive director.
*/
public void fireAt(Actor actor, Time time) throws IllegalActionException {
// Note that the actor parameter is ignored, because it does not
// matter which actor requests firing.
Nameable container = getContainer();
if (container instanceof Actor) {
Actor modalModel = (Actor) container;
Director executiveDirector = modalModel.getExecutiveDirector();
if (executiveDirector != null) {
executiveDirector.fireAt(modalModel, time);