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Re: Issue 133: SOAP and Web Architecture: Draft sentences for HTTP bi nding preamble.

From: <noah_mendelsohn@us.ibm.com>
Date: Thu, 21 Feb 2002 12:12:22 -0500
To: alex@shop.com
Cc: Martin Gudgin <marting@develop.com>, Mark Nottingham <mnot@mnot.net>, Paul Prescod <paulp@ActiveState.com>, "Williams, Stuart" <skw@hplb.hpl.hp.com>, xml-dist-app@w3.org, xml-dist-app-request@w3.org
Message-ID: <OFA52EABFD.35215A23-ON85256B67.005F175B@lotus.com>
Alexander Jacobson writes:

>> You need something that identifies a function call as being idempotent

Yes, but not necessarily determinable from the contents of the SOAP 
envelope, the method names, etc.  I would expect that the "idempotency" 
would be captured in the specifications for the serivce, probably in the 
accompanying WSDL, perhaps in the UDDI if you're using that, etc.  So, if 
I identify getSocialSecurityNumber(name) as idempotent in a WSDL or 
similar description, I would expect that the endpoints identified as 
supporting that service would indicate that they are using the HTTP GET 
binding (sorry for the US-centric example) .  None of this requires us to 
infer from the method name or other contents of a SOAP envelope that the 
service is idempotent.  Thanks.

Noah Mendelsohn                              Voice: 1-617-693-4036
IBM Corporation                                Fax: 1-617-693-8676
One Rogers Street
Cambridge, MA 02142
Received on Thursday, 21 February 2002 12:28:46 UTC

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