code: @Override
  	public CommerceNotificationTemplateUserSegmentRel fetchByCommerceUserSegmentEntryId_First(
  		long commerceUserSegmentEntryId,
  		OrderByComparator<CommerceNotificationTemplateUserSegmentRel> orderByComparator) {
  		List<CommerceNotificationTemplateUserSegmentRel> list = findByCommerceUserSegmentEntryId(commerceUserSegmentEntryId,
  				0, 1, orderByComparator);
  
  		if (!list.isEmpty()) {
  			return list.get(0);
  		}
  
  		return null;
  	}
docs: Returns the first commerce notification template user segment rel in the ordered set where commerceUserSegmentEntryId = &#63;.
  
  @param commerceUserSegmentEntryId the commerce user segment entry ID
  @param orderByComparator the comparator to order the set by (optionally <code>null</code>)
  @return the first matching commerce notification template user segment rel, or <code>null</code> if a matching commerce notification template user segment rel could not be found