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Date: Wed, 30 Apr 2008 12:06:29 +0200
From: Tony Seebregts <tony@iveri.com>
Organization: iVeri Payment Technology
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To: Commons Users List <user@commons.apache.org>
Subject: Re: [SCXML] _eventdata not included in collection events ?
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 <BDDC2E39D59D4D48984BB961677A2F104336D8@vnexch01.gilfillan.de.ittind.com>
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	 <ce1f2ea80804141218v9374d4cp3884ddc07487586c@mail.gmail.com>
	 <BDDC2E39D59D4D48984BB961677A2F10433A48@vnexch01.gilfillan.de.ittind.com>
	 <ce1f2ea80804181712m7c80b611w3c1cc6e91c8c1d67@mail.gmail.com>
	 <BDDC2E39D59D4D48984BB961677A2F10433D51@vnexch01.gilfillan.de.ittind.com>
	 <ce1f2ea80804231942v406eb9c6kb2a668d479d8e2d4@mail.gmail.com>
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Ah, of course ... thanks Rahul !

This exposes a problem with the Javascript evaluator though. The
Javascript engine (both JDK and JSR223) isn't able to apply the []
operator to a HashMap because its a Java object rather than a Javascript
object (using _eventdatamap.get('event.name') works fine).

Will file a bug...

regards

Tony


>> Hi,
>>
>>  I'm trying to pass information from a class that extends Action via a
>>  TriggerEvent payload but in the SCXML script the _eventdata value for
>>  the associated event transition seems to be null.
>>
>>  Any ideas ?
>>
>>  The payload works fine if I call triggerEvent but not if I just add the
>>  event to the events Collection and I can't figure out why (for various
>>  reasons triggerEvent doesn't work in the scenario).
>>
> <snip/>
> 
> Yup, you shouldn't use triggerEvent here.
> 
> The way derived events are handled is to process all of them in a
> microstep. Since there may be more than one event, _eventdata is
> ambigous, and _eventdatamap['event.name'] should be used instead for
> derived events.
> 
> For example, see the eventdata_* test case documents in the JUnit test
> suite ... few of them are here:
> 
> http://svn.apache.org/repos/asf/commons/proper/scxml/trunk/src/test/java/org/apache/commons/scxml/env/jexl/
> 
> -Rahul


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