- All Superinterfaces:
- EventListener
public interface LineListener extends EventListener
Instances of classes that implement the 
LineListener interface can
 register to receive events when a line's status changes.- 
Method Details- 
updateInforms the listener that a line's state has changed. The listener can then invokeLineEventmethods to obtain information about the event.- Parameters:
- event- a line event that describes the change
 
 
-