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From "Tony Seebregts (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SCXML-71) Javascript expression evaluator cannot evaluate _eventdatamap['event.name']
Date Thu, 08 May 2008 16:11:03 GMT

    [ https://issues.apache.org/jira/browse/SCXML-71?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12595309#action_12595309
] 

Tony Seebregts commented on SCXML-71:
-------------------------------------

I've added a (fairly minimal) comment in the JSEvaluator.java javadoc comments and also added
a sample to the end of the example-01.xml. 

The attached file has the all the relevant files I found in the J5 branch but the only ones
that have changed are:

- JSEvaluator.java (added comment)
- JSExampleTest.java (added MapTest inner class to support the _eventdatamap example)
- example-01.xml (added the maptest example at the bottom)

Hope that all helps :-) 



> Javascript expression evaluator cannot evaluate _eventdatamap['event.name']
> ---------------------------------------------------------------------------
>
>                 Key: SCXML-71
>                 URL: https://issues.apache.org/jira/browse/SCXML-71
>             Project: Commons SCXML
>          Issue Type: Bug
>    Affects Versions: 0.7
>         Environment: Java 6
>            Reporter: Tony Seebregts
>            Priority: Minor
>             Fix For: 1.0
>
>
> The _eventdatamap is implemented as a Java HashMap - and the Javascript engines (both
JDK and JSR223) don't seem to be able to apply the [] operator to a Java Map object. 
> An interim workaround when using the Javascript evaluator is to use _eventdatamap.get('event.name').

> For the longer term this anomalous behaviour can either just be documented or a patch
that specifically handles _eventdatamap[] can be included in the eval functions

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