Re: [sca-assembly] ISSUE 40: Autowire at the domain-level

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

Or we could choose to disallow autowire at the Domain level for everyone.
At the very least, I think it should be an optional feature if it stays.
If it stays, then I'd like the default to be off for the Domain.

My main concern with autowire in the domain is that it is potentially very
dangerous in a large enterprise production environment.  It has the
possibility for un-intentional side effects. Those environments generally
like to put very tight control over the relationships between the different
parts of the system (domain).  I suspect that since you raised the
question, there may be other environments where less rigor is tolerable and
surprises can be dealt with easily, e.g. turning your phone off and then on
again. In those cases it seems that the introduction of a new autowire
target into the domain is one of the drivers of the re-injection
capability.  I think this is your second bullet below.



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


                                                                           
             Scott Vorthmann                                               
             <scottv@tibco.com                                             
             >                                                          To 
                                       Michael Rowley <mrowley@bea.com>    
             01/22/2008 07:11                                           cc 
             PM                        "OASIS Assembly"                    
                                       <sca-assembly@lists.oasis-open.org> 
                                                                   Subject 
                                       [sca-assembly] ISSUE 40: Autowire   
                                       at the domain-level                 
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           





http://www.osoa.org/jira/browse/ASSEMBLY-40

On Jan 22, 2008, at 3:54 PM, Michael Rowley wrote:

>
> RAISER: Michael Rowley
>
> TARGET: SCA Assembly Specification section 6.4.2 Autowire
>
> DESCRIPTION:
>
> Assume that a component is deployed at the domain level has a
> reference that has been marked to be resolved by autowire.  If a new
> component is deployed later that qualifies as a target for the
> autowire, will the existing component now target the new component?
> The specification could:
> - Require that the runtime handle such dynamic changes and effect
> such changes onto existing component references.
> - Allow that some runtimes may freeze the results of autowire at the
> time the client component is deployed, while others will treat the
> autowiring as dynamic.
> - Allow some runtimes to completely disallow autowiring for domain-
> level components.
>
> PROPOSAL:
>
> None.
>


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