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WSDL 1.1 Support

From: Venezia Claudio <claudio.venezia@telecomitalia.it>
Date: Fri, 14 Jul 2006 16:12:34 +0200
Message-ID: <F5F8BEB3F2C54240999C08F4D455D288DEE7B3@PTPEVS108BA020.idc.cww.telecomitalia.it>
To: <public-ws-semann@w3.org>
Dear All,


Our main concern was the importance to state clearly on the document that these mechanisms apply also to "legacy" Web Services. This is done and can be even enforced by providing a running translation example (related to the one in Appendix A) as John and Kunal suggested. 


We tried to apply the sawsdl spec to Telecom Italia use case (Parlay X WS 1.1) by means of the mapping rules indicated in "3. WSDL 1.1 Support". The conclusion is that section 3 of the document effectively helps the user to apply these annotation mechanisms also to WSDL 1.1 based services. And it shouldn't be that tough to create automatic translation rules (e.g. from WSDL1.1 to WSDL2.0 or vice versa) which can handle also the semantic annotation porting.


We also agree with related things 1,2,3 and would suggest another:


The mapping between interface and operation in fact works. John and Kunal correctly added that interfaces do even support inheritance. What happens to the semantic annotations in this case, an interface extending another does actually inherit its semantic annotations? Does the same apply to the inherited operations? Shouldn't we tackle it on the document?





-----Original Message-----

From: public-ws-semann-request@w3.org [mailto:public-ws-semann-request@w3.org] On Behalf Of Kunal Verma

Sent: marted́ 11 luglio 2006 18.01

To: SAWSDL public list

Subject: WSDL 1.1 Support



Claudio and Jacek,


As a start on our action item, we made a few changes and additions to section 3 of the document (see below).  We also suggest adding Appendix D (moving the current D to E, etc.) that shows the complete running example in annotated WSDL 1.1.  Finally a few related things are mentioned.



John and Kunal




3. WSDL 1.1 Support


The mechanism for semantic annotation described in this specification can also be applied to WSDL 1.1 [WSDL 1.1] conformant Web services descriptions.

All the XML attributes defined in this specification apply without modification to the WSDL 1.1 descriptions.

However, in some cases they are applied to different elements in the WSDL document structure.


Input and Output


Annotation of XML Schema types with modelReference, liftingSchemaMapping or loweringSchemaMapping can be accomplished using the approach described for annotating these elements in WSDL 2.0.

In addition, a liftingSchemaMapping, loweringSchemaMapping or modelReference attribute may be added to a part element (under a message element) to specify an input or output annotation that applies to a part of a message.

These elements are part of the portType structure in WSDL 1.1 which generally corresponds to the WSDL 2.0 interface structure.  One difference is that that portTypes do not support inheritance (extends relation).




In WSDL 1.1, faults are specified as messages that are generated when a particular condition arises.

Annotations for fault messages are done just as annotations are done for any other output message.




An operation is annotated as in WSDL 2.0.




A portType is annotated in the same way as a WSDL 2.0 interface.


Running Example in WSDL 1.1


The same running example as shown in Appendix A, is reproduced in Append D with minimal changes.  In particular, the following changes were necessary:


1. ?

2. ?


Further examples, including one with annotated message parts, are shown in the Use Cases and Examples document.




Found a couple of related things:


1. Perhaps we should say before or after showing the WSDL Running example in section 1.4, that a complete annotated version is given in Appendix A.

Might also be useful to highlight the annotations in Appendix A somehow (bold, italics or font change).  This makes it easier to pick out the annotations.


2. The following sentence seems to be missing something:

"The complete wsdl file is given below and available as separate http://www.w3.org/2002/ws/sawsdl/spec/wsdl/order# <http://www.w3.org/2002/ws/sawsdl/spec/wsdl/order> ."


3. Has the example in the appendix been validated?






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        Thank you


Received on Friday, 14 July 2006 14:13:34 UTC

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