jess
Interface JessListener

All Superinterfaces:

java.util.EventListener

All Known Implementing Classes:

JessEventAdapter, Rete

public interface JessListener

extends java.util.EventListener

JessListener is a notification interface for Jess events. Objects that wish to be notified of significant happenings in a Jess engine should implement this interface, then register themselves with a Rete object using Rete.addJessListener().

(C) 1997 Ernest J. Friedman-Hill and Sandia National Laboratories

Author:

Ernest J. Friedman-Hill

See Also:

JessEvent, Rete.addJessListener(jess.JessListener), Rete.removeJessListener(jess.JessListener)

Method Summary

void	eventHappened(JessEvent je) Called by a JessEvent source when something interesting happens.

Method Detail

eventHappened

public void eventHappened(JessEvent je)
                   throws JessException

Called by a JessEvent source when something interesting happens. The typical implementation of eventHappened will switch on the return value of je.getType().

Parameters:

je - an event object describing the event.

Throws:

JessException - if any problem occurs during event handling.