Hi, This may be a very basic question, but I'm using drools 5.1.1 and when I invoke a stateful session and that session ends I receive back all of the facts that were created during that session and I translate those into an EDI transaction. As an example I might have a few objects of types "2700*LX,2750* N1,2750* REF, and 2750*DTP". I know my rules fired create objects like: LX*1 N1*75*CMSEC REF*17*A DTP*007*D8*20140114 LX*2 N1*75*STATUS REF*17*AFTNM DTP*007*D8*20140114 Each of these lines is an object of the type I mentioned above. My task is to make sure that the different object types "stick" together when I put them in the .x12 file so that they are formatted above. What I do internally is I keep track that I have two of each of these objects, but I don't know if there is some type of timestamp that is on them that I could keep the first LX, N1, REF, DTP together or not. In one example I have a rule that inserts them in the order you see, yes, it literally inserts 8 objects/facts into memory. And I need to know the order they were inserted so that I can properly form a file out of them on the backend. Here's how I grab the objects and factHandle list. Is there a method that might help me know what object was created by what rule and how I might keep facts created in a rule together? // Get handle to all objects coming from drools Collection<FactHandle> handleList = null; try { handleList = ksession.getFactHandles(); } catch (Exception e) { _log.error("kSession get Fact Handles. Error=" + e.getMessage()); } // Build the List with the results from drools - objectOutList Object anObject; TranslatedObjectImpl aTranslatedObject; FactHandle fH; for (Iterator<FactHandle> it = handleList.iterator(); it.hasNext();) { fH = (FactHandle) it.next(); anObject = (Object) ksession.getObject(fH); if (anObject instanceof String) { // prt("Ignoring back from drool the String object " + anObject.getClass().getCustomerLogName()); } else if (anObject instanceof TranslatedObjectImpl) { aTranslatedObject = (TranslatedObjectImpl) ksession.getObject(fH); objectOutList.add(aTranslatedObject); if (_log.isTraceEnabled()) _log.trace("Back from drools, translated object " + anObject.getClass().getSimpleName()); } else { objectOutList.add(ksession.getObject(fH)); if (_log.isTraceEnabled()) _log.trace("Back from drools, found object " + anObject.getClass().getSimpleName()); } } if (_log.isDebugEnabled()) _log.debug("Done with Transformer. Total number of Drools object = " + objectOutList.size()); ksession.dispose(); Any thoughts? Thanks, Dean