wow, you guys are good, nice observation Raffi I had not considered that but this is all making me comprehend how Drools works. Actually I think I need to switch my brain on! Java is so easy it doesn't tend to require much thought, now I'm having to think about this stuff it hurts :-)
thanks Richard Raffi Khatchadourian wrote: > > On Fri 2.May'08 at 10:05:20 +0100, Anstis, Michael (M.) wrote: >>The "when" section matches fact (object) patterns, so your requirement >>could be written as:- >> >>when there is a Test Fact 'A' and another Test Fact 'B' where "the 'x' >>property of 'A'" equals "the 'y' property of fact 'B' plus 1" then..... >> >>This would become:- >> >>rule "Rule 1" >>when >> Test( $y : y ) >> Test( x == ($y + 1) ) > > Actually, please correct me if I am mistaken, but is this condition > correct? I believe that the original question is that for a single > instance of class Test t, fire the rule when t.x == t.y + 1 (where 't' > refers to the *same* instance of class Test). I believe the rule above > would match any instance of class Test whose x value is equal to the > value of the instance field y from *any* instance of class Test plus 1. > Does that make sense? > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users > > -- View this message in context: http://www.nabble.com/newbie-question-on-%22when%22-condition-syntax-tp17015309p17026266.html Sent from the drools - user mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list [email protected] https://lists.jboss.org/mailman/listinfo/rules-users
