Pimcore\Tool\Newsletter::__construct PHP Method

    public function __construct($classId = null)
    {
        $class = null;
        if (is_string($classId)) {
            $class = Object\ClassDefinition::getByName($classId);
        } elseif (is_int($classId)) {
            $class = Object\ClassDefinition::getById($classId);
        } elseif ($classId !== null) {
            throw new \Exception("No valid class identifier given (class name or ID)");
        }
        if ($class instanceof Object\ClassDefinition) {
            $this->setClass($class);
        }
    }