Re: [sca-assembly] ISSUE 40: Proposed Resolution

[David Booz <booz@us.ibm.com>]

My only quibble is over the words 'fix the result'.  I think I know what
you mean, but I dont think it's necessary to say.  If a runtime chose to do
1 and 2, but not 3, then the result of 2 would be 'fixed' by definition
because 3 is what introduces dynamicity.

Attempting a slight reword:

1) ...as you have it is fine...

2) The SCA runtime MAY associate target(s) with the reference at the time
the component is deployed.

3) The SCA runtime MAY re-evaluate the target(s) for the reference
dynamically as later deployment actions
occur resulting in updated reference targets to match the new Domain
configuration.  How the new configuration of
the reference takes place is described by the relevant client and
implementation specifications.



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
e-mail:booz@us.ibm.com
http://washome.austin.ibm.com/xwiki/bin/view/SCA2Team/WebHome


                                                                           
             Mike Edwards                                                  
             <mike_edwards@uk.                                             
             ibm.com>                                                   To 
                                       "OASIS Assembly"                    
             04/29/2008 05:28          <sca-assembly@lists.oasis-open.org> 
             AM                                                         cc 
                                                                           
                                                                   Subject 
                                       [sca-assembly] ISSUE 40: Proposed   
                                       Resolution                          
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           





Folks,

Here is a proposal for he resolution of Issue 40:

For components at the Domain level, with References that are marked as
@autowire="true", the behaviour of
the SCA runtime takes ONE of the 3 following forms:

1) The SCA runtime MAY disallow deployment of any components with autowire
References.
In this case, the SCA runtime MUST generate an exception at the point where
the component is deployed

2) The SCA runtime MAY evaluate the target(s) for the reference at the time
that the component is deployed
and fix the result

3) The SCA runtime MAY re-evaluate the target(s) for the reference
dynamically as later deployment actions
occur and update the reference targets to match the new Domain
configuration.  How the new configuration of
the reference takes place is described by the relevant client and
implementation specifications.


Yours,  Mike.

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






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