@WebMethod(operationName = "ReadShipper")
    public ArrayList<Shipper> ReadShipper(@WebParam(name = "ship_id") String ship_id) {
            Shipper ship  = new Shipper();
            ArrayList<Shipper> ships = new ArrayList<Shipper>();
            ArrayList<QueryCriteria> qc = new ArrayList<QueryCriteria>();
            if(!ship_id.equals("-1")){
                qc.add(new QueryCriteria("ship_id", ship_id, Operand.EQUALS));
            }
            ArrayList<String> fields = new ArrayList<String>();
            ArrayList<QueryOrder> order = new ArrayList<QueryOrder>();
        try {
           ships = ship.Read(qc, fields, order);
        } catch (SQLException ex) {
            Logger.getLogger(JAX_WS.class.getName()).log(Level.SEVERE, null, ex);
        }
            if(ships.isEmpty()){
                return null;
            }
        return ships;
    }