public function __construct($articleNumber = null, $languageId = null, $authorId = null, $typeId = null, $order = null)
{
$this->articleNumber = (int) $articleNumber;
$this->languageId = (int) $languageId;
$this->authorId = (int) $authorId;
$this->typeId = (int) $typeId;
$this->order = (int) $order;
}