Thank you for the links, which were helpful.
>
> http://weblogs.java.net/blog/jfarcand/archive/2007/03/new_adventures_1.html
>
> So before I jump into code snippet, does that help you to start? I can
> certainly gives concrete example if you want :-)
>
> Concrete examples would be very helpful, or even pseudocode. For example,
would a delivery guarantee mechanism involve client acks?
--Phil