@Override public void insertSalesOrder(SalesOrder so) { dao.insert(so); }
@Override public SalesOrder getSalesOrder(Integer id) { return dao.getSalesOrder(id); }
@Override public void updateSalesOrder(SalesOrder so) { dao.update(so); }
@Override public void deleteSalesOrder(Integer id) { dao.delete(id); }
@Override public List<SalesOrder> getAllSalesOrders() { return dao.getAllSalesOrders(); }