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From "Uwe Schindler (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LUCENE-3736) ParallelReader is now atomic, rename to ParallelAtomicReader and also add a ParallelCompositeReader (that requires LogDocMergePolicy to have identical subreader structure)
Date Fri, 17 Feb 2012 15:23:59 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-3736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Uwe Schindler updated LUCENE-3736:
----------------------------------

    Attachment: LUCENE-3736-improveTestCoverage.patch

Here is a patch that improves test coverage and adds one more check to the composite parallel
reader ctor:
If somebody has 2 parallel composite readers, while the first one has atomic subreaders but
the other one has composite subreaders (but correct maxDocs), the ctor fails with ClassCastEx.

I will commit this now as test improvement.
                
> ParallelReader is now atomic, rename to ParallelAtomicReader and also add a ParallelCompositeReader
(that requires LogDocMergePolicy to have identical subreader structure)
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: LUCENE-3736
>                 URL: https://issues.apache.org/jira/browse/LUCENE-3736
>             Project: Lucene - Java
>          Issue Type: Sub-task
>          Components: core/index
>            Reporter: Uwe Schindler
>            Assignee: Uwe Schindler
>             Fix For: 4.0
>
>         Attachments: LUCENE-3736-improveTestCoverage.patch, LUCENE-3736.patch, LUCENE-3736.patch,
LUCENE-3736.patch, LUCENE-3736.patch, LUCENE-3736.patch, LUCENE-3736.patch, LUCENE-3736.patch,
LUCENE-3736.patch, LUCENE-3736.patch, LUCENE-3736.patch, LUCENE-3736.patch
>
>
> The plan is:
> - Move all subreaders to ctor (builder-like API. First build reader-set, then call build)
> - Rename ParallelReader to ParallelAtomicReader
> - Add a ParallelCompositeReader with same builder API, but taking any CompositeReader-set
and checks them that they are aligned (docStarts identical). The subreaders are ParallelAtomicReaders.

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