SwA vs. Apache Server 2.2

Hi ppl,
 
 When an SwA Envelope is sent to server (Apache SOAP 2.2), does the remote 
method i am calling on the server has to provide special handling to attachements, or 
is the whole attachments mechanism
embedded inside server plumbing code and the remote method does not have to 
be changed to handle it ? I.e.: Transparent conversion between using normal SOAP 
RPC and using SwA on the server side.
 
Thanks,
- Firas