Re: Is there a future for RPC style SOAP?

Anne wrote:

>I'm not sure I really see much value for the SOAP RPC structure if you're
>not using SOAP encoding.

This was the same conclusion reached by the ebXML Message Service team when
SOAP was being integrated into ebMS.

The ebMS specification contains header elements to identify "Service" (aka
Object) and "Action" (aka Method) to support both RPC and messaging exchange
models. The team of people responsible for integrating SOAP/ebMS saw no
added value in replacing ebXML's model with SOAP's RPC model. Here is a
snippet showing ebXML's approach to identify RPC's:

Healthcare Example:

<Service>ClaimProcessing</Service>
<Action>ProcessInstitutionalClaim</Action>

Energy:

<Service>CapacityScheduling</Service>
<Action>ProcessNomination</Action>

I chose to show these two examples specifically because the parameters
passed to both contain "X12" data.


Dick Brooks
Systrends, Inc
7855 South River Parkway, Suite 111
Tempe, Arizona 85284
Web: www.systrends.com <http://www.systrends.com>
Phone:480.756.6777,Mobile:602-684-1484,eFax:240-352-0714


-----Original Message-----
From: Discussion of implementing SOAP applications today
[mailto:[email protected]]On Behalf Of Anne Thomas Manes
Sent: Saturday, December 07, 2002 6:16 AM
To: [email protected]
Subject: Re: [SOAP] Is there a future for RPC style SOAP?


> Date:    Fri, 6 Dec 2002 14:35:27 -0000
> From:    "GOFFIN, Fraser" <[email protected]>
> Subject: Re: Is there a future for RPC style SOAP?
>
>  <snip>
>         So, despite the fact that RPC/Encoded is commonly used today I for
> one will not implement anything further using SOAP encoding. This still
> leaves the fact that there are some circumstances where implementing RPC
> style exchange could be of use. Unfortunately there is little tool support
> RPC/Literal so I guess its Doc/Lit only going forward ?
>
>         Fraser.
>

I'm not sure I really see much value for the SOAP RPC structure if you're
not using SOAP encoding. If you're not using SOAP encoding, then the only
difference between RPC and Document style formats is that the RPC message is
wrapped in an element that represents the method name. There are other ways
to indicate the method you'd like to perform (e.g., the target URI, or the
SOAPAction header).

What circumstances were you thinking of where it could be of use?

Anne

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