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From "Adrien Grand (JIRA)" <j...@apache.org>
Subject [jira] [Created] (LUCENE-5701) Move core closed listeners to AtomicReader
Date Fri, 23 May 2014 13:58:01 GMT
Adrien Grand created LUCENE-5701:
------------------------------------

             Summary: 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


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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