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https://issues.apache.org/jira/browse/LUCENE-3789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13211056#comment-13211056
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Robert Muir commented on LUCENE-3789:
-------------------------------------
Looks fine to me!
> Expose FilteredTermsEnum from MTQ
> ----------------------------------
>
> Key: LUCENE-3789
> URL: https://issues.apache.org/jira/browse/LUCENE-3789
> Project: Lucene - Java
> Issue Type: Improvement
> Components: core/search
> Affects Versions: 3.6, 4.0
> Reporter: Simon Willnauer
> Priority: Minor
> Fix For: 3.6, 4.0
>
> Attachments: LUCENE-3789.patch
>
>
> MTQ#getEnum() is protected and in order to access it you need to be in the
> o.a.l.search package.
> here is a relevant snipped from the mailing list discussion
> {noformat}
> getEnum() is protected so it is intended to be called *only* by subclasses
> (that's the idea behind protected methods). They are also accessible by other
> classes from the same package, but that's more a Java bug than a feature. The
> problem with MTQ is that RewriteMethod is a separate *class* and *not a
> subclass* of MTQ, so the method cannot be called (it can because of the "java
> bug" called from same package). So theoretically it has to be public
> otherwise you cannot call getEnum().
> Another cleaner fix would be to add a protected final method to RewriteMethod
> that calls this method from MTQ. So anything subclassing RewriteMethod can
> get the enum from inside the RewriteMethod class which is the "correct" way
> to handle it. Delegating to MTQ is then "internal".
> {noformat}
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