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Subject: RE: [wsbpel] Issue - 90 - Assignment of external data into a variable


You are assuming that the data associated with a URL is static, which is not true in the general case.
 
Ugo
-----Original Message-----
From: Kristofer Agren [mailto:kagren@pakalert.com]
Sent: Friday, January 09, 2004 9:33 AM
To: wsbpel@lists.oasis-open.org
Subject: RE: [wsbpel] Issue - 90 - Assignment of external data into a variable

Of course it is possible to provide the functionality through a Web Service call, but in my opinion, just like the current <from> construct that supports in-line data, it should be a part of the static behavior of the process, not the dynamic one. This will also allow for a static validation of the data against the data type of the destination variable.

 

Kristofer

 


From: Ugo Corda [mailto:UCorda@SeeBeyond.com]
Sent: Friday, January 09, 2004 11:50 AM
To: wsbpel@lists.oasis-open.org
Subject: RE: [wsbpel] Issue - 90 - Assignment of external data into a variable

 

Couldn't this functionality be modeled by an invoke to a Web service that returns the file's data?

 

Ugo

-----Original Message-----
From: ws-bpel issues list editor [mailto:peter.furniss@choreology.com]
Sent: Friday, January 09, 2004 8:34 AM
To: wsbpel@lists.oasis-open.org
Subject: [wsbpel] Issue - 90 - Assignment of external data into a variable

This issue has been added to the wsbpel issue list. The issues list is posted as a Technical Committee document to the OASIS WSBPEL TC pages on a regular basis. The current edition, as a TC document, is the most recent document with the title in the "Issues" folder of the WSBPEL TC document list - the next posting will include this issue. The list editor's working copy, which will normally include an issue when it is announced, is available at this constant URL.

Issue - 90 - Assignment of external data into a variable

Status: open
Date added: 9 Jan 2004
Submitter: Kristofer Agren
Date submitted: 09 January 2004
Document: BPEL specification
Description: The current assignment model allows for assigning literal data entered in directly under the <from> element. In practice, it may be desirable to have an external file/location where the data is maintained, which will allow for reuse if the same set of data is to be utilized in different business processes. The external file must be a valid XML document.
Submitter's proposal: I propose that this is solved by adding another form of the <form> element that can accept an external location uri and an optional query string:

<assign>
      <copy>
              <from location="uri" query="queryString"?/>
              <to.../>
      </copy>
</assign>


Changes: 9 Jan 2004 - new issue


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