Julian Morrison wrote:
Suppose I have a rule like:rule "foo" when $a : Cheese(name="Stilton") $b : Cheese(name="Stilton") then # etc end First question: is it possible that a == b ? In other words, can both patterns end up matching the same object in one activation? I have been assuming this is so, but it isn't covered in the docs so far as I can see.
Yes this is no different from select * from Cheese a, Cheese b
Second question: why can't I add as a pattern, $a != $b ? The eclipse IDE compiler complains they are undefined. What is the scope of the bindings defined by $a and $b ?
$a : Cheese(name=="stilton") $b : Cheese( this != $a, name == "stilton" ) Or you can use an eval: eval( $a != $b ) _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users
