How are you executing the rules? Are you using web services via the Drools execution server? because, I have seen multiple firings in this scenario.
Regards, Prem 2009/7/2 Shabbir Dhari <sdh...@hotmail.com> > Dear all > > We are developing a financial business application that contains hundreds > of business rules for validations and calculations. In the calculation rules > we change the value of attribute if values past in the request is incorrect > e.g. > > rule "TaxCalc" > when > $i : Invoice() > Invoice (totalTax != (round(salesTax + (gstRate * salesAmount / > 100) + importDuty – govtRebate, 2))) > then > i.setTotalTax(round(salesTax + (gstRate * salesAmount / 100) + > importDuty – govtRebate, 2)); > end > > The above code works perfectly fine. Only problem is the perform > calculation twice. What I was looking if possible I can store calculated tax > in a variable and simply assign variable to attribute if rule condiation > fails. Some thing like: > > rule "TaxCalc" > when > $i : Invoice() > Invoice (totalTax != calTax : (round(salesTax + (gstRate * > salesAmount / 100)+ importDuty – govtRebate, 2))) > then > i.setTotalTax(calTax); > end > > But this does not work - shows system error at calculated value assignment. > Is there any work around? > > > ------------------------------ > Click here to find out more POP access for Hotmail is > here!<http://windowslive.ninemsn.com.au/article.aspx?id=802246> > > _______________________________________________ > rules-users mailing list > rules-users@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > >
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