[rules-users] Guvnor guided rule and nested objects

[hpost]

Hi.   I am trying to implement the following rule using a guided rule in
Guvnor.  It works successfully in the Eclipse environment.  

rule "SevereHypoglycemia"
	no-loop true
	when
		$event : GlucoseEvent(input.glucoseValue <=
glucoseConst.severeHypoglycemiaThreshold);
	then
	 	GlucoseResult result = $event.getResult();
		result.setNewInsulin(0);
		double nextTime = glucoseCalc.calculateDuration(1.0,
$event.getInput().getGlucoseValue(), $event.getInput().getGlucoseTime(),
null, null);
		result.setHoursToNextMeasurement(nextTime);
		result.setDextroseGr(0.5);
		result.setNotifyPhysician(true);
		$event.setResult(result);
		update($event);
	 
		System.out.println("SevereHypoglycemia rule ran.");
		
end


I have imported the jar file and can see all of the objects.  The problem I
am having is with the nested object model.  I can reference the
GlucoseEvent.input.glucoseValue field successfully, but the only comparison
operators I get are 'equals too' and 'not equals to'.   They type of
glucoseValue is double and I need to do relational comparison as in the rule
above.    If I do a 'View Source' on the rule in BRMS, this is what I see if
I use the 'equals' operator:


rule "Rule1"
	dialect "mvel"
	when
		GlucoseEvent( input.glucoseValue == "40" )
	then
end


Is this bug or does the guided rule editor only support flat object models?

Thanks,

Herman Post

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