code: private void updateRuleSplitNode(PredicateContentEvent pce) {
  		int ruleID = pce.getRuleNumberID();
  		for (PassiveRule rule:ruleSet) {
  			if (rule.getRuleNumberID() == ruleID) {
  				if (pce.getRuleSplitNode() != null)
  					rule.nodeListAdd(pce.getRuleSplitNode());
  				if (pce.getLearningNode() != null)
  					rule.setLearningNode(pce.getLearningNode());
  			}
  		}
  	}
docs: /*
  Add predicate/RuleSplitNode for a rule