[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