public function isItemClass(core_kernel_classes_Class $clazz)
    {
        $returnValue = (bool)false;

        if ($this->itemClass->getUri() == $clazz->getUri()) {
            return true;
        }

        foreach ($clazz->getParentClasses(true) as $parent) {

            if ($parent->getUri() == $this->itemClass->getUri()) {
                $returnValue = true;
                break;
            }
        }

        return (bool)$returnValue;
    }