[Zope] Products, ZClasses and CatalogAware-ness

Hi, Could someone clarify the following for me: I would like to create a Product that instantiates itself with a ZCatalog and a search interface "built-in". I'd like make all the Product's ZClasses update the catalog whenever they are changed. If I make all the classes catalog-aware and point them to the name of the "root" ZCatalog, will they (re)index the root catalog or a catalog local to the class itself? If the latter, can I force [it] to do the former? Thanks, + Product + ZClass + ZClass + ZCatalog - search/index_html - results + ...