Hi Peter,
On 1/31/11 10:02 AM, Peter Niblett wrote:
OF763B6028.75E4C560-ON80257829.0060B0A2-80257829.006323A6@uk.ibm.com"
type="cite">Eric
You said..
Neither of the above indicate whether or not
the global
domain channel
can be used before it is referenced.
Ah yes, the joys of a muddled brain on Monday morning. You're
correct - the question is whether or not the global domain channel
can be used before it is *created* via a contribution.
Thanks for catching my circularity.
-Eric.
OF763B6028.75E4C560-ON80257829.0060B0A2-80257829.006323A6@uk.ibm.com"
type="cite">
I'm not sure how you can "use"
a channel without referencing it (I assume "reference" means
"wire to/from"), but I think the question you are asking is the
one in the title - "can you reference a channel that hasn't been
defined
to the SCA assembly?". I think this is one place where the
current
spec is clear.. you can't reference a domain channel that hasn't
been defined.
So it looks as though your issue
is
to say that we should change the spec to say that it permits (in
fact requires)
autocreation of domain channels. Presumably these channels
would
have to be created with default attributes (though I know you
think they
shouldn't have attributes at all).
Regards
Peter Niblett
IBM Senior Technical Staff Member
Member of the IBM Academy of Technology
+44 1962 815055
+44 7825 657662 (mobile)
From:
Eric Johnson
<eric@tibco.com>
To:
OASIS SCA Assembly
<sca-assembly@lists.oasis-open.org>
Date:
31/01/2011 17:19
Subject:
[sca-assembly]
NEW ISSUE: (1.2) Must a global domain channel be deployed before
it can
be used?
Title: Must a global domain channel be deployed
before
it can be used?
Target: Assembly 1.2 WD 03
Description:
Via the "@target" and "@source" attributes defined
on a consumer &
producer, the assembler can reference global domain channels.
In section 5.8, the presumed to be normative text reads "SCA
runtimes
MUST support the use of domain channels [ASM????]." That is
followed by:
"To create a Domain Channel, deploy a composite containing a
channel
directly to the SCA Domain (i.e., do not use that composite as
the
implementation of some component in the Domain)."
Neither of the above indicate whether or not the global domain
channel
can be used before it is referenced.
Proposal:
General theme: do not require the global domain channel to
exist before
it can be used.
Specific text (needs refinement?):
In section 5.8, Paragraph #2, append:
When contributing artifacts to a domain that contain
references to
global domain channels that have not been created, the SCA
runtime MUST
automatically create said global domain channels, and cannot
reject such
contributions [ASM????].
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