You could do public final static MAX_AMOUNT in some class foo.Bar and then, in DRL: import function foo.Bar.*; and use MAX_AMOUNT as usual. -W On 8 October 2010 12:52, Evert Penninckx <evert.penninckx(a)gmail.com&gt;wrote: > > Hi > > I've got the following rule: > > when > $sale : Sale( amount > 300 ) > then > modify($sale) { amount = 300; } > end > > First problem: I don't like putting the constant value "300" two times in > my > rule. > > Second problem: amount is a BigDecimal. I read that mvel2 supports > BigDecimal literals like 300.00B, but drools won't compile this. > > An ideal solution would look like something like this: > > when > $maxAmount : 300.00B > $sale : Sale( amount > $maxAmount ) > then > modify($sale) { amount = $maxAmount; } > end > > > 1. Is it possible to attribute values to a variable? > > 2. If not, is it possible to use mvel's BigDecimal support? Because > amount > > 300.00B says a lot more than eval(amount.compareTo(new > BigDecimal("300.00")) > 0). > > > > Evert > -- > View this message in context: > http://drools-java-rules-engine.46999.n3.nabble.com/Constants-and-BigDeci... > 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 >

2. If not, is it possible to use mvel's BigDecimal support? Because amount > 300.00B says a lot more than eval(amount.compareTo(new BigDecimal("300.00")) > 0).