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From "Max Tardiveau (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JEXL-118) Provide an IN operator
Date Wed, 03 Aug 2011 14:58:28 GMT

    [ https://issues.apache.org/jira/browse/JEXL-118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13078784#comment-13078784
] 

Max Tardiveau commented on JEXL-118:
------------------------------------

Awesome! Thanks a bunch, this is going to be pretty handy.

In case you're wondering what we're doing with this, by the way:

http://www.automatedbusinesslogic.com/

We use Jexl to do runtime interpretation of formulas, constraints, and clauses for sums and
counts.

Thanks again!

> Provide an IN operator
> ----------------------
>
>                 Key: JEXL-118
>                 URL: https://issues.apache.org/jira/browse/JEXL-118
>             Project: Commons JEXL
>          Issue Type: New Feature
>    Affects Versions: 2.0.1
>            Reporter: Max Tardiveau
>            Assignee: Henri Biestro
>              Labels: features
>             Fix For: 2.1
>
>
> It would be very useful to have an IN operator, e.g.:
> status in ['A', 'B', 'C']
> that would return a boolean. This can currently be done with :
> status == 'A' or status == 'B' or status == 'C'
> but (especially for longer lists) the IN operator would be more concise and more elegant.
> Extra bonus points, of course, if this works with variables, e.g.:
> status in possibleStatuses
> where possibleStatuses would be an object of type Collection.

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