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https://issues.apache.org/jira/browse/SCXML-114?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13810862#comment-13810862
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Woonsan Ko commented on SCXML-114:
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Hi Henri,
Currently we have a singleton JexlEngine instance in JexlEvaluator and the
singleton is initialized in static block.
This seems to bring a limitation because the static singleton instance is not
so flexible and controllable.
Also, I've just realized that JexlEvaluator itself is thread-safe, and so
someone can use it as singleton instead. This way, I think we can keep it more
flexible and fulfills more use cases.
Therefore, I'd like to change the JexlEngine instance from static member to
instance member, assuming it's up to those who creates SCXMLExecutor to decide
whether the JexlEvaluator should be singleton or not.
What do you think?
Regards,
Woonsan
P.S. I created another issue, SCXML-175, because I want to give more freedom to
add namespaced functions in JEXL expressions/scripts. If we don't have to keep
it as singleton any more, we can easily improve SCXML-175.
> Support for JEXL2
> -----------------
>
> Key: SCXML-114
> URL: https://issues.apache.org/jira/browse/SCXML-114
> Project: Commons SCXML
> Issue Type: Improvement
> Reporter: Henri Biestro
> Assignee: Woonsan Ko
> Fix For: 2.0
>
> Attachments: SCXML-114.patch, SCXML-114.patch
>
>
> JEXL 2.0 release being (hopefully) soon, it may make sense to use it instead
> of JEXL 1.1.
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