[NEW ISSUE] Conformance Assertion [ASM50012] is invalid

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

Raiser:        
       Mike Edwards

Target:        
       SCA Assembly Specification - sca-assembly-1.1-spec-cd01-rev8.doc

Description:

Conformance assertion [ASM50012], in
lines 866 - 871 says:

"If no binding elements are specified for the reference, then the bindings specified for the
equivalent reference in the componentType of the implementation MUST be used, but if
the componentType also has no bindings specified, then <binding.sca/> MUST be used
as the binding. If binding elements are specified for the reference, then those bindings
MUST be used and they override any bindings specified for the equivalent reference in the
componentType of the implementation."

The problem is that IF no bindings are specified in the <reference> of the <component>
and there are no bindings specified in the reference of the <componentType/>, then the
only way of identifying a target service is through the @target attribute of the <reference/>
element.  

We have a rule [ASM50026] which precludes there being ANY <binding/>
child elements of the <reference/> in the case where there is a value for the @target
attribute of the <reference/>.  This is so that the binding used for the wire is determined
by the bindings attached to the target service, not by the reference.

So the statement that <binding,sca/> MUST be used where there are no bindings
declared for the reference is incorrect and should be removed.  In this case there is
simply no <binding/> present and the binding used is determined by the target service.


Proposal:

Change conformance assertion [ASM50012] to read as follows:

"If no binding elements are specified for the reference, then the bindings specified for the
equivalent reference in the componentType of the implementation MUST be used. If binding
elements are specified for the reference, then those bindings MUST be used and they
override any bindings specified for the equivalent reference in the componentType of the
implementation. [ASM50012]"

Add the following explanatory words following [ASM50012]:

"It is valid for there to be no binding elements on the component reference and none on the
reference in the componentType - the binding used for such a reference is determined by
the target service"



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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