The nice and short Category update processor in MODX 2.2

update.class.php

<?php
class modElementCategoryUpdateProcessor extends modObjectUpdateProcessor {
    public $classKey = 'modCategory';
    public $languageTopics = array('category');
    public $permission = 'save_category';
    public $objectType = 'category';
}
return 'modElementCategoryUpdateProcessor';