code: public static CPDefinitionOptionValueRel fetchByKey_First(String key,
  		OrderByComparator<CPDefinitionOptionValueRel> orderByComparator) {
  		return getPersistence().fetchByKey_First(key, orderByComparator);
  	}
docs: Returns the first cp definition option value rel in the ordered set where key = &#63;.
  
  @param key the key
  @param orderByComparator the comparator to order the set by (optionally <code>null</code>)
  @return the first matching cp definition option value rel, or <code>null</code> if a matching cp definition option value rel could not be found