Hi, I'm somewhat new to drools and would like some comments on performance. I'm choosing between doing an eval on a HashMap vs. a from on an ArraryList. My assumption is the from on an ArrayList is better, is that correct? In my situation the HashMap and ArrayList do not have many items in them. thanks! 1. eval on HashMap when $item:RulesVatTOA() eval($item.getMyHashMap().get("Vat_YesNo") != null && $item.getMyHashMap().get("Vat_YesNo").equals("Yes")) then 2. from on ArrayList when $item:RulesVatTOA() $myValue:com.mycode.util.NameValue(name == "Vat_YesNo", value == "Yes") from $item.getMyArrayList() then -- View this message in context: http://www.nabble.com/Performance-question---eval-on-a-HashMap-vs.-from-o... 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