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Subject: NEW ISSUE: The EJB bindings specification should provide explicity statesupport or non-support for Callbacks

I'm forwarding this binding TC email to the SCA-J TC for awareness and
consideration.  This TC owns one binding spec, the EJB binding, and I
believe we should also at least consider this issue.

FWIW, a search of the latest EJB binding working draft does not reveal any
references to "callback" (though my memory was that we made statements of
non-support in the spec, apparently we don't).  There is a section on
conversations mapped to stateful session beans so I believe that aspect is
covered.  Thus the issue:

Raiser:                Dave Booz

Target:                EJB Binding specification


At present, the EJB binding spec is completely silent on callbacks as
described in the Assembly specification. My assertion is that each binding
spec is obligated to clearly state what is and is not supported from the
Assembly specification. I don't believe that silence is sufficient due to
the inter-relationship of the various SCA specifications.

The SCA-Bindings TC is considering a similar question for each of the
binding specs owned by that TC.


None at present.

Dave Booz
STSM, SCA and WebSphere Architecture
Co-Chair OASIS SCA-Policy TC
"Distributed objects first, then world hunger"
Poughkeepsie, NY (845)-435-6093  or  8-295-6093
----- Forwarded by David Booz/Poughkeepsie/IBM on 02/05/2008 03:04 PM -----
             Eric Johnson                                              
             02/04/2008 02:45          Mike Edwards                    
             PM                        <mike_edwards@uk.ibm.com>       
                                       OASIS Bindings                  
                                       Re: [sca-bindings] ISSUE-22: The
                                       Bindings specifications should  
                                       provide exemplary Implementations
                                       for a) Callbacks and b)         

Logged as http://www.osoa.org/jira/browse/BINDINGS-22


Mike Edwards wrote:

      Raiser:                Mike Edwards

      Target:                Web Services Binding specification, JMS
      Binding Specification, JCA Binding Specification


      At present, it is not clear which, if any, of the Bindings
      specifications enable the implementation of two important
      features of SCA described in the Assembly specification - namely
      Callback interfaces and Conversational

      Each of the Bindings specifications should explicitly declare if it
      is possible to support each of these features.

      For each of the Bindings specifications that claim to support either
      or both of these features, the specification
      should provide a full description of at least one exemplary
      implementation of the feature using the Binding
      technology described in the specification.  Multiple alternative
      implementations are permitted and may be
      added to the specification.

      For example, it may be possible to implement Callbacks using
      WS-Addressing capabilities with Web services.
      If so, and example, showing the use of appropriate features of
      WS-Addressing and other relevant WS-*
      capabilities should be added to the specification.   If an
      alternative exists using (say) WS-Context, then an
      example based on that technology can also be provided.


      None at present.

      Yours,  Mike.

      Strategist - Emerging Technologies, SCA & SDO.
      Co Chair OASIS SCA Assembly TC.
      IBM Hursley Park, Mail Point 146, Winchester, SO21 2JN, Great
      Phone & FAX: +44-1962-818014    Mobile: +44-7802-467431
      Email:  mike_edwards@uk.ibm.com

      Unless stated otherwise above:
      IBM United Kingdom Limited - Registered in England and Wales with
      number 741598.
      Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire
      PO6 3AU

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