@Override
public Object provide(Object source, Object currentValue) {
List<YearMonthDay> result = new ArrayList<YearMonthDay>();
ViewEventSpaceOccupationsBean bean = (ViewEventSpaceOccupationsBean) source;
Partial year = bean.getYear();
Partial month = bean.getMonth();
if (month != null && year != null) {
int monthNumber = month.get(DateTimeFieldType.monthOfYear());
int yearNumber = year.get(DateTimeFieldType.year());