2011/8/1 Matthew Erler <[email protected]> > The first thing that the service method needs to do is clear out all the > facts inserted during the last service method invocation. I use > StatefulKnowledgeSession.insert(Object fact) to add facts and > StatefulKnowledgeSession.getAgenda().clear() to clear out all facts.
The Agenda is where all *rule activations* live. Facts are reachable via the kSession object, e.g., kSession.getFactHandles(), and you could use retract() on them. But note well that retracting facts is not a free lunch: each one updates the Rete network. Calling kSession.dispose() and kBase.newStatefuleKnowledgeSession() is a perfectly reasonable way to clear the ring for the next round. -W
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