protected override DataViewRowCursor GetRowCursorCore(IEnumerable <DataViewSchema.Column> columnsNeeded, Random rand = null) { Host.AssertValue(_pipedTransform, "_pipedTransform"); return(_pipedTransform.GetRowCursor(columnsNeeded, rand)); }
protected override RowCursor GetRowCursorCore(Func <int, bool> needCol, Random rand = null) { Host.AssertValue(_pipedTransform, "_pipedTransform"); return(_pipedTransform.GetRowCursor(needCol, rand)); }