Client side request/response chain

[Qi...@chase.com]

Hi, all:

Being new to Axis, I am not clear about the Client side request/response
chain.
Does it mean for any Axis client, there can be such a chain?

To be specific, the Axis samples/security example. It has this client side
global request chain. Could someone
explain to me what this is?

I thought the request/response chain is just similar to Servlet Filter.
But, I am puzzled by client side chain.

Thanks

Qiang Bai