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https://issues.apache.org/jira/browse/SCXML-45?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rahul Akolkar resolved SCXML-45.
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Resolution: Fixed
Fix Version/s: 0.7
Copying the commit message from r542582:
This has been implemented (with a test case), however note the following caveat
--
The spec doesn't clarify how multiple <send> elements that create derived
events should be handled, so for example:
<onentry>
<send event="ev.foo" namelist="alpha beta"/>
<send event="ev.bar" namelist="gamma delta"/>
</onentry>
I think they should be processed together (this makes sense to leverage
parallel regions for example), and due to that '_eventdata' becomes ambiguous
in this scenario. The Commons SCXML implementation introduces an implicit
variable '_eventdatamap' for such scenarios wherein the event datas are stored
keyed by event name.
So, the two <send> events above could be processed by two regions like so:
<parallel>
<state id="region1">
<transition event="ev.foo" cond="_eventdatamap['ev.foo'].alpha eq
'somevalue'"
target="..." />
<!-- ... -->
</state>
<state id="region2">
<transition event="ev.bar" cond="_eventdatamap['ev.bar'].delta eq
'othervalue'"
target="..." />
<!-- ... -->
</state>
<!-- ... -->
</parallel>
To summarize, the _eventdatamap variable needs to be used in association with
"derived" (such as <send> being discussed here) events. Also note that this
behavior may change if there is clarity in the specification at some point.
> Payload of events sent to current scxml session using <send> tag not injected
> into engine
> -----------------------------------------------------------------------------------------
>
> Key: SCXML-45
> URL: https://issues.apache.org/jira/browse/SCXML-45
> Project: Commons SCXML
> Issue Type: Bug
> Affects Versions: 0.6
> Reporter: Ingmar Kliche
> Assignee: Rahul Akolkar
> Priority: Minor
> Fix For: 0.7
>
>
> Events which are sent to the current scxml session using the <send> tag (i.e.
> target = empty) may contain payload specified by the namelist attribute. This
> payload is currently not fed back into engine when the event is created.
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