RE: [rules-users] Rule firing problem - must be missing somethingobvious

You are not telling the rule engine that GlucoseDecisionState has been updated. You might also like to think about how the GlucoseDecisionState and GlucoseDecision are related. If you have multiple instances of either class the rules' behaviour might be unexpected (your RHS's suggest the two are related but your LHS patterns suggest they are unrelated). _____ From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of J Michael Dean Sent: 27 November 2007 13:41 To: rules-users(a)lists.jboss.org Subject: [rules-users] Rule firing problem - must be missing somethingobvious I am passing a glucose decision object with a value of 12, and have a state object that starts out with its flag set false. The desired behavior is that the value will be recognized as "extremeHypoglycemia" by the first rule, and then the second rule will recommend giving a glucose bolus. When I pass both objects in without "true" to cause automatic updating, then the first rule fires, the output is false Fired detect extreme hypoglycemia true and then the program stops. It does not fire the second rule. When I add true to the insertion of these objects, then the program recurses, and still never hits the second rule. Interestingly, the output is true Fired detect extreme hypoglycemia true true Fired detect extreme hypoglycemia true ... ETC. rule "First rule: Detect extreme hypoglycemia" no-loop true when decision : GlucoseDecision( serumGlucoseConcentration < 40 ) decisionState : GlucoseDecisionState(extremeHypoglycemia == false) then System.out.println("Fired detect extreme hypoglycemia"); System.out.println(decisionState.isExtremeHypoglycemia()); decisionState.setExtremeHypoglycemia(true); decision.setRationaleText(decision.getRationaleText() + "Extreme hypoglycemia (Current glucose is " + decision.getSerumGlucoseConcentration() +" mg/dL).\n"); System.out.println(decisionState.isExtremeHypoglycemia()); update(decision); end rule "Second rule: Give glucose bolus for extreme hypoglycemia" no-loop true when decision : GlucoseDecision() decisionState : GlucoseDecisionState(extremeHypoglycemia == true ) then System.out.println("Fired glucose bolus rule"); decisionState.setRecommendedGlucoseBolus(true); decision.setRationaleText(decision.getRationaleText() + "Glucose bolus recommended because of extreme hypoglycemia.\n"); end