add method
Sets the next column value in this row.
Returns this builder to support chaining.
Throws CursorRangeError if you try to add too many values.
Implementation
MatrixCursorDataRowBuilder add(Object? columnValue) {
if (_index == _endIndex) {
throw CursorRangeError("No more columns left.");
}
_cursorData._data[_index] = columnValue;
_index += 1;
return this;
}