Eddie, Nobody's probably jumping to answer your more general question because the NDC mechanism is very flexible - it is impossible to say "this is THE right way to use it", simply because there are so many different ways that you could use it, for many different purposes. Having said that, the answer to your newer question is more straightforward (which is why you're getting more than one answer!). NDC follows the thread of execution: in your example, because you call your second class from the servlet, the thread of execution moves from your servlet to your other class, and the NDC stack is built to reflect this. In this way, it's just like the standard Java execution stack. Different servlets, OTOH == different threads == different NDC stacks. Do you understand? Thus, the answer to (part) of your original question is: no, the NDC is not bound to any specific Category instance. It's bound to the thread of execution that pushes the first item onto its stack. Once you understand this, the answers to the rest of your questions (which are *very* dependent on the details of your own code) are usually fairly self-evident. Cheers, Mark --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
