@Override
	public Collection<Response> findResponses(SearchCriteria criteria) {
		Collection<Response> responsesAllTimestamps = responseRepository.find(criteria);
		
		// timestamp stored as string not queryable in DB, all timestamps come back, still need to filter this subset		
		return findResponses(criteria, responsesAllTimestamps);
	}
@ Override public Collection < Response > findResponses ( SearchCriteria criteria ) { Collection < Response > responsesAllTimestamps = responseRepository . find ( criteria ) ; return findResponses ( criteria , responsesAllTimestamps ) ; }
{@inheritDoc}