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RE: Async Web Services

From: Krishna Sankar <ksankar@cisco.com>
Date: Mon, 8 Jul 2002 08:43:49 -0700
To: <www-ws@w3.org>
Message-ID: <005901c22696$41cb5630$15d3fea9@amer.cisco.com>

Yep, agreed. In fact, most probably, we would have pluggable MEPs
identified by some URI. WSDL and XMLP would refer to the same MEP. 

One of the issues is how would we tie them together ? An MEP would say 2
requests and one response back or for that matter 9 requests and one
aggregated response back. Now the WSDL has to define how the two
requests would look like, what are their URLs and how the response would
manifest.

cheers

|  -----Original Message-----
|  From: www-ws-request@w3.org [mailto:www-ws-request@w3.org] 
|  On Behalf Of Christopher B Ferris
|  Sent: Monday, July 08, 2002 8:14 AM
|  To: Naresh Agarwal
|  Cc: Krishna Sankar; www-ws@w3.org
|  Subject: RE: Async Web Services
|  
|  
|  
|  
|  It isn't at all clear to me what is necessary in WSDL to "describe" a
|  SOAP1.2
|  MEP. I suppose that some of the defined properties might 
|  need to be exposed
|  (like reqres:role, reqres:immediateDestination URI and 
|  possibly web:method)
|  but it is my
|  understanding that the MEPs are intended to be "described" 
|  by means of a
|  formal
|  specification such as that found in the SOAP1.2 Part 2 Adjuncts
|  specification [1] and [2].
|  
|  Thus, WSDL shouldn't need much more than a means of 
|  identifying the MEP
|  in play for a given port by means of its assigned URI and 
|  any properties
|  that might
|  apply.
|  
|  Cheers,
|  
|  Chris
|  
|  [1] 
|  http://www.w3.org/TR/2002/WD-soap12-part2-20020626/#singlereqrespmep
|  [2] http://www.w3.org/TR/2002/WD-soap12-part2-20020626/#soapresmep
|  
|  
|  
|  
|                                                               
|                                                                       
|                        "Naresh Agarwal"                       
|                                                                       
|                        <nagarwal@in.firs        To:       
|  "Krishna Sankar" <ksankar@cisco.com>, <www-ws@w3.org>        
|              
|                        train.com>               cc:           
|                                                                       
|                        Sent by:                 Subject:  RE: 
|  Async Web Services                                                   
|                        www-ws-request@w3                      
|                                                                       
|                        .org                                   
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|                        07/08/2002 11:15                       
|                                                                       
|                        AM                                     
|                                                                       
|                                                               
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|  
|  
|  
|  
|  Hi Krishna,
|  
|  >            If I am correct the only two modes of operation 
|  are fire and
|  > forget or req-response. Asynchronous web services or more 
|  precisely,
|  > stateful web services require some sort of correlation between
|  > invocations. ebXML has the conv id which could be used for 
|  this. Most
|  > probably the future web services interactions would be based
|  > on SOAP 1.2
|  > MEPs.
|  
|  
|  I agree that future Web Services interactions would be based 
|  on SOAP1.2
|  MEPs.
|  But is there *enough* support in WSDL1.1/WSDL1.2 to describe 
|  these MEPs?
|  
|  
|  thanks,
|  regards,
|  Naresh Agarwal
|  
|  
|  
|  
|  
|  
|  
Received on Monday, 8 July 2002 11:44:25 GMT

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