[JXTA discuss] Understanding how to use modules?

Hi,

 

i'am trying to understand the functionality of modules in JXTA. In a book I
read that modules are definitions of services and applications available on
a peer or in a peer group. Modules are used to define the code to be
executed. For example I have two peers(Peer A and Peer B). I write my module
code on PeerA and publish a ModuleImplementation Advertisement. Does it
means that PeerB can discover the advertisement and invoke the module code
on PeerA? Is there any simple example of writing a module? Is a module
similar to a web service?

 

Any help is appreciated.

 

Regards

Ferruh