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From "Adrien Grand (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-5701) Move core closed listeners to AtomicReader
Date Fri, 23 May 2014 15:35:02 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-5701?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Adrien Grand updated LUCENE-5701:
---------------------------------

    Attachment:     (was: LUCENE-5701.patch)

> 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
>
>
> 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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