}
/**
- * Sets all friends of this Sone at once.
- *
- * @param friends
- * The new (and only) friends of this Sone
- * @return This Sone (for method chaining)
- */
- public Sone setFriends(Collection<String> friends) {
- friendSones.clear();
- friendSones.addAll(friends);
- return this;
- }
-
- /**
* Returns whether this Sone has the given Sone as a friend Sone.
*
* @param friendSoneId