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https://issues.apache.org/jira/browse/JEXL-118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Henri Biestro resolved JEXL-118.
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Resolution: Fixed
Fix Version/s: 2.1
Instead of a new IN operator, I extended =~ and !~ operators to behave as IN
and NOT IN on sets, collections, maps (on keys), arrays and "duck-typed"
collections (classes exposing "contains" method).
Works with constants and variables (extra points :-)).
Committed revision 1153476.
trunk/src/main/java/org/apache/commons/jexl2/Interpreter.java
trunk/src/main/java/org/apache/commons/jexl2/JexlArithmetic.java
trunk/src/main/java/org/apache/commons/jexl2/internal/ArrayListWrapper.java
trunk/src/site/xdoc/changes.xml
trunk/src/site/xdoc/reference/syntax.xml
trunk/src/test/java/org/apache/commons/jexl2/ArithmeticTest.java
> 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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