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From "Karl Wettin (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-550) InstanciatedIndex - faster but memory consuming index
Date Sun, 23 Jul 2006 14:01:15 GMT
     [ http://issues.apache.org/jira/browse/LUCENE-550?page=all ]

Karl Wettin updated LUCENE-550:
-------------------------------

    Attachment: lucene2-karl_20060723.tar.gz

Updated to match the current svn with Fieldable, et.c.

All changes to Lucene core are now gathered in a small patch (de-finalized Document and Term)
and one new class (InterfaceIndexWriter implemented by IndexWriter in patch) instead of attaching
the whole trunk.

Still fails a few score- and RMI-tests. 

> InstanciatedIndex - faster but memory consuming index
> -----------------------------------------------------
>
>                 Key: LUCENE-550
>                 URL: http://issues.apache.org/jira/browse/LUCENE-550
>             Project: Lucene - Java
>          Issue Type: New Feature
>          Components: Store
>    Affects Versions: 1.9
>            Reporter: Karl Wettin
>         Attachments: class_diagram.png, class_diagram.png, instanciated_20060527.tar,
InstanciatedIndexTermEnum.java, lucene.1.9-karl1.jpg, lucene2-karl_20060722.tar.gz, lucene2-karl_20060723.tar.gz
>
>
> After fixing the bugs, it's now 4.5 -> 5 times the speed. This is true for both at
index and query time. Sorry if I got your hopes up too much. There are still things to be
done though. Might not have time to do anything with this until next month, so here is the
code if anyone wants a peek.
> Not good enough for Jira yet, but if someone wants to fool around with it, here it is.
The implementation passes a TermEnum -> TermDocs -> Fields -> TermVector comparation
against the same data in a Directory.
> When it comes to features, offsets don't exists and positions are stored ugly and has
bugs.
> You might notice that norms are float[] and not byte[]. That is me who refactored it
to see if it would do any good. Bit shifting don't take many ticks, so I might just revert
that.
> I belive the code is quite self explaining.
> InstanciatedIndex ii = ..
> ii.new InstanciatedIndexReader();
> ii.addDocument(s).. replace IndexWriter for now.

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