The code you've posted and the error message just don't match. I think that everything up to and including m_rete.assertFact(afct); succeeds, and the error occurs later. -W
On Thu, Feb 19, 2009 at 4:31 PM, Theunissen, Teun <[email protected]>wrote: > > > > > I am creating a fact in a java method. When I add this fact to the rete > engine I get the following error: > > > > An error occurred at line: -1 > > which look like: null > > Errormessage: No slot __data in deftemplate MAIN::answer > > > > > > The problem is that the answer fact is an unordered fact and the > deftemplate is defined in the MAIN module. > > It seems that the rete engine handles this fact as an ordered fact. > > What can I do to solve this problem? > > > > The java code that builds the fact: > > > > *public* *void* assertAnswer(String identifier, String answer, > *int*valuetype) { > > *try* { > > Fact afct = *new* Fact("answer", m_rete); > > > > afct.setSlotValue("ident", *new* Value(identifier,RU.*SYMBOL*)); > > afct.setSlotValue("text", *new* Value(answer,valuetype)); > > System.*out*.println(afct.toString()); > > m_rete.assertFact(afct); > > > > The messages on the console: > > > > Focus: MAIN > > (MAIN::answer (ident IL1_1) (text NEE)) > > JessEvent: [JessEvent: a fact was asserted] > > An error occurred at line: -1 > > which look like: null > > Errormessage: No slot __data in deftemplate MAIN::answer > > > > Kind regards > > Teun Theunissen > > > > >
