2010/2/24 Ansgar Konermann <ansgar.konerm...@googlemail.com>:
>
> rule "Issue error message if items preventing discount exist"
> when
> exists( ItemPreventingDiscount( $reason: reason, $item: item ) )
The exists isn't correct here; it prevents binding for $reason and
$item used on the RHS.
> then
> System.out.println("Discount not allowed: Item '"+ $item.getDescription()
> + "' prevents discount because " + $reason + ".");
Probably should use a retract on the ItemPreventingDiscount here.
Creating these XPreventingY facts would really make sense if they are
later combined into a single error report against the Order.
-W
> end
>
_______________________________________________
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users
