public function apply(Boris $boris)
    {
        $applied = false;

        foreach ($this->_searchPaths as $path) {
            if (is_readable($path)) {
                $this->_loadInIsolation($path, $boris);

                $applied        = true;
                $this->_files[] = $path;

                if (!$this->_cascade) {
                    break;
                }
            }
        }

        return $applied;
    }