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Subject: RE: [sca-j] ISSUE 4 - Dependency reinjection


I have one specific comment to make here - done inline....

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

"Reza Shafii" <rshafii@bea.com> wrote on 07/01/2008 21:07:32:

> Another option would be to use Mike's idea of a "reinject" parameter on
> @Reference to also derive the behavior of the getServiceReference()
> method. If reinject="true" reinjection should occur and subsequent
> invocations of getServiceReference() would lead to an object referencing
> the new target.  If reinject="false", reinjection should not occur and
> subsequent invocations of getServiceReference() would lead to the target
> prior to rewiring.
> I am also thinking that the reinject=true value would only be valid if
> the conditions previously discussed apply (i.e. scope is composite,
> conversational interfaces must not be active, and the reference is field
> based or setter based). This would change the table as attached.

This was NOT my proposal.

My proposal is that IF reinject=true is set, then reinjection occurs for ANY
scope of component.  My thinking here is that, since by default no reinjection
occurs, and that the programmer has to do something active to get reinjection
to occur, then it is reasonable to allow reinjection for any and all scopes
- at the request of the programmer.  This gets rid of those rules that you
list above.

The thinking here is that IF you care about reinjection, then you will take
the trouble to think through what it means to change the reference you are
using (or perhaps, writers of material about SCA will take the trouble to
tell you....).

> Cheers,
> Reza

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