Re: [sca-assembly] [ASSEMBLY 180] Composite ref pseudo schema doesn't agreewith XML schema definitions - @autowire - PROPOSAL

[Mike Edwards <mike_edwards@uk.ibm.com>]

Dave,

I went back through the history of autowire
and reached the conclusion that it had never been intended that autowire
should work
through a promotion, and that the appearance
of @autowire on the XSD for composite reference was a mistake.

I think that your interpretation is
correct - autowire is resolved within the composite containing the component
with the autowire reference.
If not resolved, then its an error if
multiplicity 1..x was specified for the reference.

I also note that my proposal is a simplification
of references  ;-)

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

From:	David Booz <booz@us.ibm.com>
To:	sca-assembly@lists.oasis-open.org
Date:	08/09/2009 13:39
Subject:	Re: [sca-assembly] [ASSEMBLY 180] Composite ref pseudo schema doesn't agree with XML schema definitions - @autowire - PROPOSAL

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Interesting. I went back and looked at the spec text again.
In my proposal for ASSEMBLY-180 (in JIRA), I'm interpreting lines 1883
(cd03-rev2) in the spec to mean that autowire+promotion is possible, but
unfortunately not defined. Mike, you seem to read those words as autowire
was never intended to work in conjunction with promotion. I hadn't considered
that interpretation. If we were to take that position, then effectively
it says that autowire MUST be resolved within the bounds of a given composite
(where the domain is a composite for domain level components) and that
the failure to find targets within the composite results in an error?

Dave Booz
STSM, BPM and SCA Architecture
Co-Chair OASIS SCA-Policy TC and SCA-J TC
"Distributed objects first, then world hunger"
Poughkeepsie, NY (845)-435-6093 or 8-295-6093
e-mail:booz@us.ibm.com

Mike
Edwards ---09/08/2009 08:15:26 AM---Folks, I didn't spot that Dave Booz
had already raised an issue on this topic.

From:	Mike Edwards <mike_edwards@uk.ibm.com>
To:	"OASIS Assembly" <sca-assembly@lists.oasis-open.org>
Date:	09/08/2009 08:15 AM
Subject:	[sca-assembly] [ASSEMBLY 180] Composite ref pseudo schema doesn't agree with XML schema definitions - @autowire - PROPOSAL

---

Folks, 

I didn't spot that Dave Booz had already raised an issue on this topic.
Please accept the following email as an alternative
proposal for Issue 180. 

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 
----- Forwarded by Mike Edwards/UK/IBM on 08/09/2009 13:13 -----

From:	Mike Edwards/UK/IBM@IBMGB
To:	"OASIS Assembly" <sca-assembly@lists.oasis-open.org>
Date:	07/09/2009 15:27
Subject:	[sca-assembly] [NEW ISSUE] sca-core.xsd incorrectly has @autowire attribute for composite <reference/> element

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Raiser: Mike Edwards 

Target: sca-assembly-1.1-spec-cd03-Rev2.pdf 

Description: 

The sca-core XSD declares the <composite/> <reference/> element
to have an @autowire attribute: 

4190      <attribute
name="autowire"
type="boolean"
use="optional"/>

However, the specification section for the <composite/> <reference/>
element does not contain a description of @autowire and the
pseudo-schema does not contain the @autowire attribute.

It was never intended that composite references should have an @autowire
attribute. If they did, this could lead to dangerous
default autowire values occurring on components that used a composite containing
a composite reference of this kind. 

Proposal: 

Remove the @autowire attibute from the <composite/> <reference/>
element in the sca-core XSD. 

This means deleting line 4190 from CD03-Rev2. 


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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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

---

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

---

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