code: @Override
  	public CommerceAddress fetchByG_C_C_DB_First(long groupId,
  		long classNameId, long classPK, boolean defaultBilling,
  		OrderByComparator<CommerceAddress> orderByComparator) {
  		List<CommerceAddress> list = findByG_C_C_DB(groupId, classNameId,
  				classPK, defaultBilling, 0, 1, orderByComparator);
  
  		if (!list.isEmpty()) {
  			return list.get(0);
  		}
  
  		return null;
  	}
docs: Returns the first commerce address in the ordered set where groupId = &#63; and classNameId = &#63; and classPK = &#63; and defaultBilling = &#63;.
  
  @param groupId the group ID
  @param classNameId the class name ID
  @param classPK the class pk
  @param defaultBilling the default billing
  @param orderByComparator the comparator to order the set by (optionally <code>null</code>)
  @return the first matching commerce address, or <code>null</code> if a matching commerce address could not be found