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