Column constructor

Column(
  1. int? ordinal,
  2. ColumnComparator? _comparator,
  3. SortDirection? _sortDirection
)

ordinal the (base 1) index of the column. The _comparator we will used to compare to lines when sorting. The _sortDirection is either ascending or decending.

Implementation

Column(this.ordinal, this._comparator, this._sortDirection);