A package defining some useful implementations of
ModelChangedListener, for listening to
(a) all triples added or removed, exploding composite objects,
(b) all objects added or removed, as themselves,
(c) notification of additions/removals, but no details,
and (d) accepting but ignoring all changes, as a base-class to
ClassDescriptionClass that merely notes that a change has occurred.A listener that ignores everything you tell it; intended as a base class or an identity element.Listener that funnels all the changes into add/removed(Object) x, ie, leaves discrimination to be done on the type of object added or removed.A listener that filters all its listening down to the single-statement level.