+
+ /**
+ * Lock the item against changes outside of the DB
+ * @return Status
+ * @since 1.28
+ */
+ public function lock() {
+ return Status::newGood();
+ }
+
+ /**
+ * Unlock the item against changes outside of the DB
+ * @return Status
+ * @since 1.28
+ */
+ public function unlock() {
+ return Status::newGood();
+ }