Sent: Thursday, March 25, 2004 6:08
PM
Subject: [wsbpel] Issue - 112 -
Input/Output Elements on Messaging Activities
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Issue - 112 - Input/Output Elements on Messaging
Activities
Status: 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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