docs: @Override
  	public CPRuleUserSegmentRel fetchByCPRuleId_First(long CPRuleId,
  		OrderByComparator<CPRuleUserSegmentRel> orderByComparator) {
  		List<CPRuleUserSegmentRel> list = findByCPRuleId(CPRuleId, 0, 1,
  				orderByComparator);
  
  		if (!list.isEmpty()) {
  			return list.get(0);
  		}
  
  		return null;
  	}