docs: public void build(BuildContext context,
                        BuildUtils utils,
                        RuleConditionElement rce) {
          final WindowReference window = (WindowReference) rce;
          final WindowNode node = context.getKnowledgeBase().getReteooBuilder().getWindowNode( window.getName() );
          
          context.setObjectSource( node );
          context.setCurrentEntryPoint( node.getEntryPoint() );
       }