Re: [wsbpel] Issue - 90 - Proposal to vote

[Alex Yiu <alex.yiu@oracle.com>]

Hi,

For runtime-include, XPath function is a good way to go.

When BPEL moves to XPath 2.0 or XQuery 1.0 model, the function used in XPath / XQuery can be associated with metadata. And, static analysis will be able to be performed.



Regards,
Alex Yiu



Kristofer Agren wrote:

By using an XPath function, unless the BPEL implementation can thoroughly
validate the XPath expressions, you loose the benefit of static analysis and
the business process may fail at run time, for example because the external
document is not valid or the location may be wrong. 

Regards,

Kristofer

-----Original Message-----
From: Edwin Khodabakchian [mailto:edwink@collaxa.com] 
Sent: Monday, April 26, 2004 3:25 PM
To: 'Martin Chapman'; 'Dieter Koenig1'; 'Kristofer Agren'
Cc: wsbpel@lists.oasis-open.org
Subject: RE: [wsbpel] Issue - 90 - Proposal to vote

+1. Specially given that it is fairly straight forward to create an XPATH
function to emulate this functionality. -Edwin

-----Original Message-----
From: Martin Chapman [mailto:martin.chapman@oracle.com] 
Sent: Monday, April 26, 2004 10:55 AM
To: 'Dieter Koenig1'; 'Kristofer Agren'
Cc: wsbpel@lists.oasis-open.org
Subject: RE: [wsbpel] Issue - 90 - Proposal to vote

+1

  

-----Original Message-----
From: Dieter Koenig1 [mailto:dieterkoenig@de.ibm.com] 
Sent: 26 April 2004 08:46
To: Kristofer Agren
Cc: wsbpel@lists.oasis-open.org
Subject: Re: [wsbpel] Issue - 90 - Proposal to vote






Kristofer, the use case for having an external document that 
is part of the business process is not clear to me. Why is 
this not a literal residing inside of the process definition. 
In addition, such document references would create a new 
problem as I see no obvious way of recognizing changes of the 
external artifacts. Kind Regards DK



                                                              
           
            "Kristofer Agren"                                 
           
            <kagren@pakalert.                                 
           
            com>                                              
        To 
                                      
<wsbpel@lists.oasis-open.org>       
            23.04.2004 04:49                                  
        cc 
                                                              
           
                                                              
   Subject 
                                      [wsbpel] Issue - 90 - 
Proposal to   
                                      vote                    
           
                                                              
           
                                                              
           
                                                              
           
                                                              
           
                                                              
           
                                                              
           




Hello all,

Here is a proposal to vote for issue 90 (
http://www.choreology.com/external/WS_BPEL_issues_list.html#Issue90):

-----------------
Proposed solution:

Introduce a new form of the <from> element:

<from location="document-location" query="queryString"?/>

The query attribute has the same semantics as the normal query 
attribute on the <from> element, i.e. it must be an absolute 
location path and select exactly one node. If no query is 
specified, the root node of the XML document is selected. The 
document-location is a URL (as defined in RFC
2396) that refers to an XML document, and in the case that the 
XML document is not valid and/or a single node cannot be 
returned, a selectionFailure fault should be thrown by a 
compliant implementation. The document that is retrieved from 
the URL is considered static in the same way the business 
process definition is considered static during execution. 
Furthermore, the external document is considered part of the 
business processes that reference it, and conversely, the 
business process definition should not be considered complete 
or valid without the external document. A change in the 
external document should be treated in the same way as a 
change in the business process definition.

This <from> form can be used in conjunction with all the <to> forms.
-----------------

Regards,

Kristofer Agren

    

To unsubscribe from this mailing list (and be removed from the roster of the
OASIS TC), go to
http://www.oasis-open.org/apps/org/workgroup/wsbpel/members/leave_workgroup.
php.



To unsubscribe from this mailing list (and be removed from the roster of the
OASIS TC), go to
http://www.oasis-open.org/apps/org/workgroup/wsbpel/members/leave_workgroup.
php.


To unsubscribe from this mailing list (and be removed from the roster of the OASIS TC), go to http://www.oasis-open.org/apps/org/workgroup/wsbpel/members/leave_workgroup.php.