- /**
- * Close a file source and set it's instance to null and the file name
- * to empty.
- *
- * @return void
- * @throws UnsupportedOperationException If this method is called
- */
- public function closeFile () {
- throw new UnsupportedOperationException(array($this, __FUNCTION__), self::EXCEPTION_UNSPPORTED_OPERATION);
- }
-