[jira] Resolved: (WW-1940) Struts + MVEL

["Tom Schneider (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/struts/browse/WW-1940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tom Schneider resolved WW-1940.
-------------------------------

    Resolution: Won't Fix
      Assignee: Tom Schneider

First, I'm not convince that MVEL performs that much better than OGNL.  Maybe a little bit, but the performance gain alone is not enough to warrant the effort of integrating it.

As a side note, I have been working on a Unified EL ValueStack that would allow JSP 2.1 unified expression language to be used as the EL engine in Struts 2.  Work is going well and hopefully this will be a viable option soon for those wishing to experiment.  http://cwiki.apache.org/S2PLUGINS/unified-el-plugin.html

Finally, Richard Burton has informed us that he will be working on an MVEL implementation of the ValueStack.  Since implementing a new ValueStack is such a big effort, I think it's best to let it 'mature' outside of the core until it reaches a point where it becomes a viable option.  When it reaches the point where it becomes usable, then we'll consider moving it into core.  For now, I'm resolving this issue as Won't Fix since this probably won't be ready for the forseeable future.

> Struts + MVEL
> -------------
>
>                 Key: WW-1940
>                 URL: https://issues.apache.org/struts/browse/WW-1940
>             Project: Struts 2
>          Issue Type: Improvement
>          Components: Expression Language
>    Affects Versions: 2.0.7
>            Reporter: Maxym Pendyshchuk
>            Assignee: Tom Schneider
>            Priority: Minor
>             Fix For: Future
>
>
> Now, at least my version of Struts - 2.0.6 - use OGNL, but I found the following
> http://mvel.codehaus.org/Performance+of+MVEL
> Seems MVEL has much more vetter performance. Will you support MVEL Struts 2 ?

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