code: public long getLong(int index)
    {
      Object value = _values[index - 1];
  
      if (value instanceof Long) {
        return (Long) value;
      }
      else if (value instanceof Integer) {
        return (Integer) value;
      }
      else {
        return Long.valueOf(value.toString());
      }
    }
docs: Returns the column as a long.
  
  @param index 1-based
  @return column as a long