public static class Item { private String CustomerId; private String Item; } public static class Data { public ArrayList<Item> items = new ArrayList<Item>(); public ArrayList<Item> GetData() {Item item1 = new Item(); // some code from database item1.CustomerId=rs.getString("CustomerId"); item1.Price=rs.getString("item"); items.add(item); return item1 } 1.how to write rule how to find customer of a perticular Item 2. what i have written $D:Data(); $I:Item(); $R:Item(item =="I1" )from $D.GetData() ; then System.out.println("hello"); -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/working-with-aray-lis... 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