public function setCheckRequired()
{
try {
$this->expired = true;
$this->cacheFile->delete();
} catch (FileNotFoundException $e) {
// Don't need to delete the file, it isn't there
} catch (IOException $e) {
$message = sprintf('Unable to remove database schema check timestamp: %s', $e->getMessage());
throw new StorageException($message, $e->getCode(), $e);
}
}