Re: [wsbpel] Issue - 112 - Input/Output Elements on Messaging Activities

This also relates to Issue 11 - and creating a 
binding to an External Validation / Transaction Assembly service.

 

DW.

 

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Subject: [wsbpel] Issue - 112 - 
  Input/Output Elements on Messaging Activities

  

  
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  Issue - 112 - Input/Output Elements on Messaging 
  ActivitiesStatus: open
Categories: Data 
  handling
Date added: 25 Mar 2004
Submitter: Yaron Y. Goland
Date submitted: 25 
  March 2004
Description: 
  
A common BPEL use case is that a programmer has a number of variables that 
  contain data that will be used to create a message. When sending a message the 
  programmer will create a temporary message variable, copy the values from the 
  variables into the temporary message and then submit the temporary message 
  variable. At which point the temporary message variable is discarded. 
  
Similarly, when receiving a message the programmer may actually want the 
  data in the message to be recorded in a number of variables. Currently the 
  programmer has to create a temporary message variable, receive the message 
  into the temporary message variable just to immediately turn around and pull 
  the data out, record the data into individual variables and then discard the 
  temporary message variable. 
  
In both cases the temporary message variable is a transient storage 
  location whose only purpose is to push data in and pull data out of message 
  activities. 
  
It would be extremely friendly if we could provide a macro that would allow 
  programmers to build up a message as part of an invoke/reply from a set of 
  variables rather than having to create a temporary variable for that purpose. 
  Similarly, it would be great if it were possible on pick/receive to pull data 
  directly out of an incoming message and record the data into variables rather 
  than having to put the data into a temporary message variable whose only 
  purpose is to get ripped to pieces. 
  
To be clear, this is a request for a macro, not for a new BPEL 
  feature.
Changes: 25 Mar 2004 - new issue

  

  
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