Re: [rules-users] using BigDecimal in rules

The problem with BigDecimal is this: (new BigDecimal("43.0")).equals(new BigDecimal("43")) is evaluated to false but (new BigDecimal("43.0")).compareTo(new BigDecimal("43")) is evaluated to 0 => they are equal Note that you should use String in constructor instead of double otherwise you get something unpredictable - see http://java.sun.com/j2se/1.4.2/docs/api/java/math/BigDecimal.html#BigDeci... And because your evaluator uses equals, it is quite unusable. Is it possible to do some special wrapper for this type? Just for equality, other operations would be nice to look like "x * y" but with division you need to specify scale and therefore I think it is not possible to wrap it to some nice look. :-( Regards, Libor Edson Tirelli-3 wrote: > > It sounds like a bug. Can you get Drools source code and look at the > unit > test for this to make sure your scenario works there? The file is: > > drools-core/src/test/java/org/drools/base/EvaluatorFactoryTest.java > > Method is: > > testBigDecimal() > > Very easy to add your use case in there. > > Let us know what you find. > > Edson > > -- View this message in context: http://www.nabble.com/using-BigDecimal-in-rules-tp20362868p22539892.html Sent from the drools - user mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users