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Posted to dev@lucene.apache.org by "Uwe Schindler (JIRA)" <ji...@apache.org> on 2011/01/14 19:14:47 UTC

[jira] Closed: (LUCENE-2439) Composite readers (Multi/DirIndexReader) should not subclass IndexReader

     [ https://issues.apache.org/jira/browse/LUCENE-2439?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uwe Schindler closed LUCENE-2439.
---------------------------------

    Resolution: Duplicate

Duplicate of LUCENE-2858.

> Composite readers (Multi/DirIndexReader) should not subclass IndexReader
> ------------------------------------------------------------------------
>
>                 Key: LUCENE-2439
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2439
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Index
>            Reporter: Michael McCandless
>             Fix For: 4.0
>
>
> I'd like to change Multi/DirIndexReader so that they no longer implement the low level methods of IndexReader, and instead act more like an ordered collection of sub readers.  I think to do this we'd need a new interface, common to atomic readers (SegmentReader) and the composite readers, which IndexSearcher would accept.
> We should also require that the core Query scorers always receive an atomic reader.
> We've taken strong initial steps here with flex, by forcing users to use separate MultiFields static methods to obtain Fields/Terms/etc. from a composite reader.  This issue is to finish this cutover.

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