class Row implements Iterator<Row> {

  public boolean isMissing(String columnName) {
    Column<?> x = columnMap.get(columnName);
    int i = getIndex(rowNumber);
    return x.isMissing(i);
  }

  public  Row(Table table);
  public  Row(TableSlice tableSlice);
  public  Row(Table table, int rowNumber);
  public  Row(TableSlice tableSlice, int rowNumber);

}