Advanced Queuing - Oracle

The Internet Data Access Presentation (IDAP)
IDAP Documents
The response is the return value or an error or exception that is passed back to
the client.
At the receiving site, a request can have one of the following outcomes:
a. The HTTP infrastructure on the receiving site is able to receive and process
the request.
b. The HTTP infrastructure on the receiving site cannot receive and process
the request.
c. The SOAP infrastructure on the receiving site is able to decode the input
parameters, dispatch to an appropriate server indicated by the server
address, and invoke an application-level function corresponding
semantically to the method indicated in the method request.
d. The SOAP infrastructure on the receiving site cannot decode the input
parameters, dispatch to an appropriate server indicated by the server
address, and invoke an application-level function corresponding
semantically to the interface or method indicated in the method request.
In (a), the HTTP infrastructure passes the headers and body to the SOAP
infrastructure. In (b), the result is an HTTP response containing an HTTP error in
the status field and no XML body. In (c), the result of the method request consists of
a response or error. In (d), the result of the method is an error that prevented the
dispatching infrastructure on the receiving side from successful completion. In (c)
and (d), additional message headers may for extensibility again be present in the
results of the request.
Results from a Method Request
The results of the request are to be provided in the form of a request-response. The
HTTP response must be of Content-Type text/xml. A SOAP result indicates
success and an error indicates failure. The method response will never contain both
a result and an error.
The body of a SOAP message is an IDAP message. This XML document has the
namespace http://ns.oracle.com/AQ/schemas/access. This body
represents:
Client requests for enqueue, dequeue, and registration
Server responses to client requests for enqueue, dequeue, and registration
17-6 Oracle9i Application Developer’s Guide - Advanced Queuing