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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LUCENE-5701) Move core closed listeners to AtomicReader
Date Fri, 23 May 2014 20:55:03 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-5701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14007691#comment-14007691
] 

ASF subversion and git services commented on LUCENE-5701:
---------------------------------------------------------

Commit 1597180 from [~jpountz] in branch 'dev/trunk'
[ https://svn.apache.org/r1597180 ]

LUCENE-5701: Move core closed listeners to AtomicReader.

> Move core closed listeners to AtomicReader
> ------------------------------------------
>
>                 Key: LUCENE-5701
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5701
>             Project: Lucene - Core
>          Issue Type: New Feature
>            Reporter: Adrien Grand
>            Assignee: Adrien Grand
>            Priority: Minor
>             Fix For: 4.9, 5.0
>
>         Attachments: LUCENE-5701.patch, LUCENE-5701.patch
>
>
> Core listeners are very helpful when managing per-segment caches (filters, uninverted
doc values, etc.) yet this API is only exposed on {{SegmentReader}}. If you want to use it
today, you need to do instanceof checks, try to unwrap in case of a FilterAtomicReader and
finally fall back to a reader closed listener if every other attempt to get the underlying
SegmentReader failed.



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