@Override
      protected Cell<R, C, @Nullable V> get(int index) {
        return getCell(index);
      }
    };
  }

  private Cell<R, C, @Nullable V> getCell(int index) {
    return new Tables.AbstractCell<R, C, @Nullable V>() {
      final int rowIndex = index / columnList.size();
      final int columnIndex = index % columnList.size();

      @Override
      public R getRowKey() {