Re: [sca-assembly] [ASSEMBLY-89] Need for a Callback annotation for WSDLinterface files - PROPOSAL

[David Booz <booz@us.ibm.com>]

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

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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

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