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https://issues.apache.org/jira/browse/LUCENE-3736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler updated LUCENE-3736:
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Attachment: LUCENE-3736.patch
Attached is a patch implementing the above proposal using the builder pattern.
The builder pattern (sorry Robert), is the only nice setup that allows to set
properties like ignroing stored fields on the parallel readers, but make the
built reader unmodifiable!
> ParallelReader is now atomic, add convenience methods to wrap
> CompositeReaders in either "slow atomic" or "fast composite" way
> ------------------------------------------------------------------------------------------------------------------------------
>
> 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.patch, LUCENE-3736.patch
>
>
> ParallelReader is now atomic. We should add a sugar wrapper method to allow
> synchronized composite readers (with same segment sizes) to be aligned with
> MultiReaders or wrapped by Slow:
> - one ParallelReader with Slow wrapped parallel readers, they only need same
> maxDoc() (and deletions)
> - a MultiReader containing all sub-ParallelReaders. This needs
> CompositeReaders with same docStarts[]
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