public interface ObservableMap<K,V>
extends java.util.Map<K,V>, Observable
A map that allows observers to track changes when they occur.
An observer may be present at most once on a particular list. If it is
already present and add is called a second time, this has no effect. If
a remove call is made on an observer that's not present, this has no effect.
Nested Class Summary
Nested classes/interfaces inherited from interface java.util.Map