Re: [rules-users] Retract in a function

Michael, Those detail lines are in working memory for sure. In fact the query it self only works on working memory objects. As far as I know you can not place the results of a queryResult in the LHS. Ron On 10/3/07, Anstis, Michael (M.) <manstis1(a)ford.com&gt; wrote: > > Can you not get a reference to a DetailLine in the LHS? > > If you have not inserted DetailLine objects into working memory how can > you expect to retract them? > > If you have inserted DetailLine's into working memory what does query > "Open RTV Lines" return, can it be joined into the LHS? (or split into two > rules)? > > ------------------------------ > *From:* rules-users-bounces(a)lists.jboss.org [mailto: > rules-users-bounces(a)lists.jboss.org] *On Behalf Of *Ronald R. DiFrango > *Sent:* 03 October 2007 14:01 > *To:* Rules Users List > *Subject:* [rules-users] Retract in a function > > All, > > I have the following function that I call from all of my rules. When I > execute this function, I need to retract that object from working memory. > The problem is that when I insert the comment line below I get a compiler > error saying that I can only issue a retract on fact handles. > > Here is an example of my rule plus the function: > > rule "QTY Percentage tolerance - Approval" > salience -25 > no-loop true > when > rtvHeader : RtvHeader( totalAmount : totalAmount, status not in > ( StatusConstants.MATCHED, StatusConstants.APPROVAL) ) > repaymentCode : RepaymentCode( code == "QTY", matchApprv == "Y", > tolDollar ==0, tolPercent != 0, tolPercent : tolPercent ) > qtyOutput : QTYOutput( sumRTVQty : sumRTVQty , sumCmAndRnr : > sumCmAndRnr ) > eval( qtyPercentage(qtyOutput, totalAmount, tolPercent) ) > then > System.out.println("QTY Percentage tolerance - No Approval"); > rtvHeader.setStatus(StatusConstants.APPROVAL ); > openRTVLines(drools.getWorkingMemory(), drools.getWorkingMemory().getQueryResults( > "Open RTV Lines" ), StatusConstants.MATCHED_WITHIN_TOLERANCE); > end > > function void openRTVLines(WorkingMemory workingMemory, QueryResults > results, String status) > { > System.out.println( "We have " + results.size() + " Open RTV Lines" > ); > for ( Iterator it = results.iterator(); it.hasNext(); ) { > QueryResult result = ( QueryResult ) it.next (); > DetailLine line = ( DetailLine ) result.get( "line" ); > line.setStatus(status); > > // I need to add this in > // workingMemory.retract(line); > } > } > > Thanks in advance, > > Ron > > >