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https://issues.apache.org/jira/browse/LUCENE-3736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205032#comment-13205032
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Uwe Schindler commented on LUCENE-3736:
---------------------------------------
Thanks, looks fine. I will look tomorrow into a IdentityHashSet on all readers
(storedReaders+readers) and use that for incRef/close. Thats the easiest.
One small improvement for shorter code:
You can add all entries from an array to a collection with:
{code:java}
final Set<CompositeReader> readersSet = Collections.newSetFromMap(new
IdentityHashMap<CompositeReader,Boolean>());
Collections.addAll(readersSet, readers);
{code}
(it's just shorter)
> 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: Michael McCandless
> Fix For: 4.0
>
> Attachments: LUCENE-3733.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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