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https://issues.apache.org/jira/browse/LUCENE-550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12520132
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Karl Wettin commented on LUCENE-550:
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Grant Ingersoll - 15/Aug/07 05:17 PM
> Should I wait on this until you figure this out?
Please don't. I'm just thinking really lound.
> InstantiatedIndex - faster but memory consuming index
> -----------------------------------------------------
>
> Key: LUCENE-550
> URL: https://issues.apache.org/jira/browse/LUCENE-550
> Project: Lucene - Java
> Issue Type: New Feature
> Components: Store
> Affects Versions: 2.0.0
> Reporter: Karl Wettin
> Assignee: Grant Ingersoll
> Attachments: HitCollectionBench.jpg, lucene-550.jpg,
> LUCENE-550_20070804_no_core_changes.txt,
> LUCENE-550_20070808_no_core_changes.txt, test-reports.zip, trunk.diff.bz2,
> trunk.diff.bz2, trunk.diff.bz2, trunk.diff.bz2, trunk.diff.bz2,
> trunk.diff.bz2, trunk.diff.bz2, trunk.diff.bz2, trunk.diff.bz2,
> trunk.diff.bz2, trunk.diff.bz2
>
>
> An non file centrinc all in memory index. Consumes some 2x the memory of a
> RAMDirectory (in a term satured index) but is between 3x-60x faster depending
> on application and how one counts. Average query is about 8x faster.
> IndexWriter and IndexModifier have been realized in InterfaceIndexWriter and
> InterfaceIndexModifier.
> InstantiatedIndex is wrapped in a new top layer index facade (class Index)
> that comes with factory methods for writers, readers and searchers for unison
> index handeling. There are decorators with notification handling that can be
> used for automatically syncronizing searchers on updates, et.c.
> Index also comes with FS/RAMDirectory implementation.
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