code: public void combine(Vector new_filters, int op) throws DBException
      {
          for (Enumeration elems = new_filters.elements(); elems.hasMoreElements();)
          {
              SearchFilter filter = (SearchFilter) elems.nextElement();
  
              combine(filter, op);
          }
      }
docs: Combine other search filters with this one, using the specific operator.
  
  @param new_filters is a vector of SearchFilter classes to be combined
  @param op is the logical operator to be used to combine the filters
  @exception DBException