Sone getSone();
/**
- * Sets the owner of the album. The owner can only be set as long as the
- * current owner is {@code null}.
- *
- * @param sone
- * The album owner
- * @return This album
- */
- Album setSone(Sone sone);
-
- /**
* Returns the nested albums.
*
* @return The nested albums
Album update() throws IllegalStateException;
+ class AlbumTitleMustNotBeEmpty extends IllegalStateException { }
+
}
}