threadlocal variables in a servlet

Question

Are the threadlocals variables global to all the requests made to the servlet that owns the variables?

I am using resin for the server.

Thanks for awnser.

Answer 1

Short answer: Yes.
A bit longer one: This is how Spring does its magic. See RequestContextHolder (via DocJar).

Caution is needed though - you have to know when to invalidate the ThreadLocal, how to defer to other threads and how (not) to get tangled with a non-threadlocal context.

Or you could just use Spring...