Re: Design questions

Callbacks make your system impossible to understand. Half a dozen experienced Smalltalkers have been banging our heads against the callbacks for three days. We are trying to find out when to commit an action, and what arguments the action used. Because the request is handled automatically, it is hard (it may be impossible) to intercept the request. Because the callbacks in an action are executed multiple times, it is hard to tell when something important it happening. You are falling into the fallacy that shorter code makes for a simpler system. Callbacks might be easy for you to write, but they are hard for everybody else to read, and in the long run are a bad idea. I would MUCH prefer a completely manual handling of request and response fields. -Ralph Johnson