[rules-users] Double

[Matthew Shaw]

ok point taken. I have modified my rule so that it looks at an object
and I modify a property on that object instead as follows: But still the
same issue.
 
rule "sum higher rate totals"

salience 970

no-loop true

when

timesheet : TimesheetTransferObject( )

total : SheetTotalTransferObject($ihrisType : ihrisType ->
($ihrisType.equals(ihrisType.getDutyHourTotal())), $payRate : payRate ->
($payRate.equals(timesheet.getOfficer().getSubstantiativeRate()) ==
false))

eval(total.getValue().doubleValue() > 0)

higherDutyTotal : DutyHourTotal( )

then

higherDutyTotal.setNrHours(DateUtils.addElapsedTimes(higherDutyTotal.get
NrHours(), total.getValue().doubleValue()));

modify(higherDutyTotal);

end

 


________________________________

From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Mark Proctor
Sent: Wednesday, 30 May 2007 11:17 AM
To: Rules Users List
Subject: Re: [rules-users] Double


It's standard java pass by reference stuff:
String a = "xxx";
String b = a;
System.out.println( b ); // gives "xxx"
a = "yyyy";
System.out.println( b ); // still gives "xxx"

Mark

Matthew Shaw wrote: 

	Why is it seeing it as a new object? I am asserting it into the
working memory before hand.

________________________________

	From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Mark Proctor
	Sent: Wednesday, 30 May 2007 1:27 AM
	To: Rules Users List
	Subject: Re: [rules-users] Double
	
	
	highDutyTotal is a new fact inside of your consequence, so when
you call modify, it's actually working as an assert - you are not doing
a modify there at all.
	
	Mark
	Matthew Shaw wrote: 

		Hi there,
		 
		seeing some very strange behaviour from the following
rule
		 
		rule "sum higher rate totals"

		salience 970

		no-loop true

		when

		timesheet : TimesheetTransferObject( )

		total : SheetTotalTransferObject($ihrisType : ihrisType
-> ($ihrisType.equals(ihrisType.getDutyHourTotal())), $payRate : payRate
-> ($payRate.equals(timesheet.getOfficer().getSubstantiativeRate()) ==
false))

		eval(total.getValue().doubleValue() > 0)

		highDutyTotal : Double( )

		then

		highDutyTotal = new
Double(DateUtils.addElapsedTimes(highDutyTotal.doubleValue(),
total.getValue().doubleValue()));

		modify(highDutyTotal)

		end

		In my test the rule fires twice when I don't call
modify. Which is the expected behaviour because I have two unqiue
SheetTotalTransferObject objects.

		However when I call modify on the Double object the rule
only runs once. This is incorrect behaviour.

		 

		Can anyone offer any clues as to what may be happening
here. Is it to do with my use of the Double type?

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It may contain confidential or privileged information or both. 
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transmission. 
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You must not disclose, copy or relay on any part of this correspondence,
if you are not the intended recipient. 
Any opinions expressed in this message are those of the individual
sender except where the sender expressly, 
and with the authority, states them to be the opinions of the Department
of Emergency Services, Queensland.
	
	
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	https://lists.jboss.org/mailman/listinfo/rules-users
	  




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It may contain confidential or privileged information or both. 
No confidentiality or privilege is waived or lost by any mis transmission. 
If you receive this correspondence in error please delete it from your system immediately and notify the sender. 
You must not disclose, copy or relay on any part of this correspondence, if you are not the intended recipient. 
Any opinions expressed in this message are those of the individual sender except where the sender expressly, 
and with the authority, states them to be the opinions of the Department of Emergency Services, Queensland.
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