[Zope] Object reload event?

I have an object that uses manage_afterAdd to install several subobjects. When this object is refreshed or zope is started I want to have a method run on each instance of that object to ensure these subobjects are still there and are of the right type. How do I do this? Dylan Jay --- http://www.meetmemap.com - makes giving directions easy http://www.eatmanifesto.com - against all dumbing down of food