Re: [rules-users] Find out order of insert in RHS

Hi everybody, short: is there a way to have an automatic counter for the RHS of a rule when inserting several objects in one rule? Long: I use drools with a DSL to insert items for a frontend dropdown box. The generated rule is e.g. like the following one: rule "testRule_H" dialect "mvel" when SomePartOfMyModel( someField == "H" ) then DropDownItem fact1 = new DropDownItem(); fact1.setLabel( "My Label 1" ); fact1.setValue( "B" ); insert (fact1); DropDownItem fact1 = new DropDownItem(); fact1.setLabel( "My Label 2" ); fact1.setValue( "A" ); insert (fact1); This works nicely and I get all the items. The problem I have is with the sorting. Users use Guvnor to edit the available items for the dropdown box, so they add and remove items from the RHS. Since I retrieve those objects from the knowledge base in my java code like this: Collection<FactHandle> handles = statefulKnowledgeSession.getFactHandles(new ClassObjectFilter(DropDownItem.class)); for (FactHandle handle : handles) { DropDownItem selectItem = (DropDownItem) statefulKnowledgeSession.getObject(handle); ... I think I cannot be sure about the order the objects are retrieved (it's a collection, no guaranteed sorting!). So, I sort the DropDownItems alphabetically by their value. My question now is, as stated above: How can I implement a counter which I can use in the facts being inserted to keep my inserted facts (DropDownItems) in the same order as they are inserted? Thanks in advance Dominik ………………………………………………………………… mit freundlichen Grüßen / kind regards Dominik Sandjaja Fon: +49 (0) 203 60878 183 Fax: +49 (0) 203 60878 222 e-mail: dominik.sandjaja(a)it-motive.de it-motive AG Zum Walkmüller 10-12 47269 Duisburg info(a)it-motive.de http://www.it-motive.de …………………………………………………………………… Vorsitzender des Aufsichtsrats: Dipl.-Ing. Klaus Straub Vorstand: Horst-Dieter Deelmann (Vors.), Matthias Heming, Christoph Tim Klose HRB 9207, Amtsgericht Duisburg _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users