private function addWildcards(
        string $annotationWhereParameter,
        string $whereValue
    ) : string {
        if (substr($annotationWhereParameter, 0, 1) === '%') {
            $whereValue = '%' . $whereValue;
        }

        if (substr($annotationWhereParameter, -1, 1) === '%') {
            $whereValue = $whereValue . '%';
        }

        return $whereValue;
    }