@Override
public TreeTableCell<ModularFeatureListRow, Object> call(
    TreeTableColumn<ModularFeatureListRow, Object> param) {
  TextFieldTreeTableCell<ModularFeatureListRow, Object> cell = new TextFieldTreeTableCell<>();

  if (type instanceof StringParser) {
    cell.setConverter(((StringParser) type).getStringConverter());
    cell.setAlignment(Pos.CENTER);
    return cell;
  } else {
    logger.log(Level.SEVERE,
        "Class in editable CellFactory is no StringParser: " + type.getClass().toString());
    return null;
  }
}
 

@SuppressWarnings("unchecked")
@Override
public String _getValue() {
    TextFieldTreeTableCell<?, ?> cell = (TextFieldTreeTableCell<?, ?>) node;
    @SuppressWarnings("rawtypes")
    StringConverter converter = cell.getConverter();
    if (converter != null) {
        return converter.toString(cell.getItem());
    }
    return cell.getItem().toString();
}