public ISODate getMostRecentRequestDate() {
final CriteriaBuilder cb = _EntityManager.getCriteriaBuilder();
final CriteriaQuery<ISODate> query = cb.createQuery(ISODate.class);
final Root<SearchRequest> requestRoot = query.from(SearchRequest.class);
query.select(cb.greatest(requestRoot.get(SearchRequest_.requestDate)));
return _EntityManager.createQuery(query).getSingleResult();
}
@Override