Your topic header and topic body are asking for two different things.
1. Accessing a web service asynchronously (with WebLogic):
This is described in
Writing an Asynchronous Client Application 2. Accessing an asynchronous web service:
Same as any other web service. If the service is "asynchronous" in the
SOAP sense the HTTP response will not contain a SOAP response message but an HTTP response is still sent (
you should get a 200 or 202 status). If its an asynchronous service implemented with web services then
Asynchronous operations and Web services, Part 1: A primer on asynchronous transactions and
Asynchronous operations and Web services, Part 2: Programming patterns to build asynchronous Web services may be of help.
[ November 18, 2005: Message edited by: Peer Reynders ]