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Date: Sat, 17 Feb 2007 03:32:05 -0800 (PST)
From: "Karl Wettin (JIRA)" <jira@apache.org>
To: java-dev@lucene.apache.org
Subject: [jira] Commented: (LUCENE-550) InstantiatedIndex - faster but
 memory consuming index
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    [ https://issues.apache.org/jira/browse/LUCENE-550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12473924 ] 

Karl Wettin commented on LUCENE-550:
------------------------------------

I'll try to keep updated and built javadocs at this location:

http://ginandtonique.org/~kalle/javadocs/didyoumean/org/apache/lucene/search/didyoumean/package-summary.html

(Sorry for flooding..)

> 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
>         Assigned To: Karl Wettin
>         Attachments: didyoumean.jpg, lucene-550.jpg, test-reports.zip, 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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