An object-based event communications system supplies an event distribution
object having an outgoing-from-publisher event interface and associated
with unique identifiers defined for a publisher that is programmed to
fire events by calling a method on the event distribution object's
outgoing-from-publisher event interface. The event communications system
stores subscriptions of subscriber objects to methods of the
outgoing-from-publisher event interface. On receiving a call from a
publisher to its outgoing-from-publisher interface methods, the event
distribution object multi-casts calls to counterpart methods of
subscriber objects that have stored subscriptions to the respective
outgoing-from-publisher interface methods.