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Subject: Re: [sca-assembly] [ASSEMBLY-89] Need for a Callback annotation for WSDLinterface files - PROPOSAL update 2
- From: Mike Edwards <mike_edwards@uk.ibm.com>
- To: "OASIS Assembly" <sca-assembly@lists.oasis-open.org>
- Date: Tue, 25 Nov 2008 15:06:52 +0000
Folks,
It was pointed out to me that we removed
support of WSDL 2.0 from <interface.wsdl/> in a previous
resolved issue. So this is an
updated version of the proposal that removes all mention of WSDL 2.0
from the proposal
Resolve Issue 89 by adding the following material to the
Assembly specification
sca-assembly-1.1-spec-cd01-rev3.doc
Add to the end of Section 8.2, following
line 2521:
----------------------------------------------------------------------------
Note that an interface document such
as a WSDL file or a Java interface can contain annotations that declare
a
callback interface for a particular
interface. Whenever such an interface is used in the declaration
of an <interface/>
element in SCA, it MUST be treated as
being bidirectional with the declared callback interface. [ASM80010]
In such
cases, there is no requirement for the
<interface/> element to declare the callback interface explicitly.
Where a component uses an implementation
and the component configuration declares an interface for a service or
a
reference, if the matching service or
reference declaration in the component type declares an interface which
has a
callback interface, then the component
interface declaration MUST also declare a compatible interface with a
compatible callback interface. [ASM80011]
Where a composite declares an interface
for a composite service or a composite reference, if the promoted service
or reference has an interface which
has a callback interface, then the interface declaration for the composite
service
or the composite reference MUST also
declare a compatible interface with a compatible callback interface. [ASM80012]
See Section 6.4 Wires for a definition
of "compatible interfaces".
----------------------------------------------------------------------------
I note that there is no normative description
of the interface.wsdl element, so:
Add new subsection to Section 8, following
line 2635:
----------------------------------------------------------------------------
8.5 WSDL Interface Type
The WSDL interface type is used to declare
interfaces for services and for references, where the interface is defined
in
terms of a WSDL document. This
WSDL document MUST conform to the WSDL 1.1 specification. [ASM80009]
An interface is defined in terms of
a WSDL Port Type.
A WSDL interface is declared by an interface.wsdl
element. The following shows the pseudo-schema for the interface.wsdl
element:
<!-- ConstrainingType
schema snippet -->
<interface.wsdl
interface="xs:anyURI"
callbackInterface="xs:anyURI"?>
The interface.wsdl element has the following
attributes:
- interface (1..1) - the
URI of a WSDL Port Type (WSDL 1.1)
- callbackInterface(0..1)
- an optional callback interface, which is the URI of a WSDL Port Type
(WSDL 1.1)
8.5.1 Example of interface.wsdl
<interface.wsdl
interface=”http://www.stockquote.org/StockQuoteService#wsdl.porttype(StockQuote)”
callbackIinterface=”http://www.stockquote.org/StockQuoteService#wsdl.porttype(StockQuoteCallback)”/>
This declares an interface in terms
of the WSDL 1.1 port type "StockQuote" with a callback interface
defined by the "StockQuoteCallback" port type.
----------------------------------------------------------------------------
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:
| 19/11/2008 21:45
|
Subject:
| Re: [sca-assembly] [ASSEMBLY-89] Need
for a Callback annotation for WSDL interface files - PROPOSAL |
What happens if both @callbackInterface and @callback
are in use at the same time for a service or reference and they point to
different interfaces? I would presume that's 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 ---11/19/2008 09:08:00 AM---Folks, The following is a proposal
for resolving Issue 89:
From:
|
Mike Edwards <mike_edwards@uk.ibm.com>
|
To:
|
"OASIS Assembly" <sca-assembly@lists.oasis-open.org>
|
Date:
|
11/19/2008 09:08 AM
|
Subject:
|
[sca-assembly] [ASSEMBLY-89] Need for a Callback annotation
for WSDL interface files - PROPOSAL |
Folks,
The following is a proposal for resolving Issue 89:
(sca-assembly-1.1-spec-cd01-rev3.doc)
Add the following at the end of Section 8.4, following
line 2678:
SCA defines an attribute which is used to indicate that
a given WSDL Port Type element (WSDL 1.1) or WSDL Interface
element (WSDL 2.0) has an associated callback interface.
This is the @callback attribute, which can be applied to
a WSDL <portType/> element or a WSDL <interface/>
element.
The @callback attribute is defined as a global attribute
in the SCA namespace, as follows:
<attribute
name="callback"
type="QName"/>
The value of the @callback attribute is the QName of a
Port Type (WSDL 1.1) or the QName of an Interface (WSDL 2.0).
The Port Type or the Interface declared by the @callback
attribute is the callback interface to use for the service which
is annotated by the @callback attribute.
Here is an example of a porttype element with a callback
attribute:
<portType
name="LoanService"
sca:callback="foo:LoanServiceCallback">
<operation
name="apply">
<input
message="tns:ApplicationInput"/>
<output
message="tns:ApplicationOutput"/>
</operation>
...
</portType>
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
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
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