class DataSetGroupDateEditor implements IsWidget {

    public void init(ColumnGroup columnGroup) {
        this.columnGroup = columnGroup;
        if (columnGroup != null) {
            if (isFixedStrategy()) {
                gotoFixedMode();
            } else {
                gotoDynamicMode();
            }
        }
    }

    @Inject public  DataSetGroupDateEditor(View view, Event<DataSetGroupDateChanged> changeEvent);

}