Doctrine\ODM\OrientDB\Caster\Caster::castString PHP Method

    public function castString()
    {
        $castFunction = function ($value) {
            return is_array($value) ? 'Array' : (string) $value;
        };
        if (is_string($this->value)) {
            return $castFunction($this->value);
        }
        return $this->handleMismatch($castFunction, 'string');
    }