How to pass objects between servlet services

I wanted to pass an object from one service to another service and that object must be visible only for these two services. I don't want to use session.setAttribute or session.getAttribute to do this. When I use request.setAttribute and request.getAttribute methods not helping me to do this. Is there a way to do this?
Between, how these request.setAttribute and request.getAttribute methods useful?
regds
-raju

Actually, I set attribute in one of the service
methods. Within that service method a form will be
there. After pressing submit button in that form, the
other service will be called. Does it mean that both
the services are not in the same request scope, even
if they are in the same servlet?They are on different request scopes. Each time the user clicks a link, they make a request to the server. The server processes the request creates a response and send that response back to the client. Once the response it sent (and finished being sent) the request is done with, and anything is request scope goes out of scope. When the user clicks the submit button, a NEW request (and request scope) is made to handle that ...
Your best bet is to use a session here. It is the easiest way to maintain state between requests. That is what the session is designed for.

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