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From "wolfgang hoschek (JIRA)" <>
Subject [jira] Commented: (LUCENE-550) InstanciatedIndex - faster but memory consuming index
Date Tue, 21 Nov 2006 20:52:05 GMT
    [ ] 
wolfgang hoschek commented on LUCENE-550:

Ok. That means a basic test passes. For some more exhaustive tests, run all the queries in


against matching files such as 

    String[] files = listFiles(new String[] {
      "*.txt", //"*.html", "*.xml", "xdocs/*.xml", 

See testMany() for details. Repeat for various analyzer, stopword toLowerCase settings, such

    boolean toLowerCase = true;
//    boolean toLowerCase = false;
//    Set stopWords = null;
    Set stopWords = StopFilter.makeStopSet(StopAnalyzer.ENGLISH_STOP_WORDS);
    Analyzer[] analyzers = new Analyzer[] { 
//        new SimpleAnalyzer(),
//        new StopAnalyzer(),
//        new StandardAnalyzer(),
//        new WhitespaceAnalyzer(),
//        new PatternAnalyzer(PatternAnalyzer.NON_WORD_PATTERN, false, null),
//        new PatternAnalyzer(PatternAnalyzer.NON_WORD_PATTERN, true, stopWords),        
//        new SnowballAnalyzer("English", StopAnalyzer.ENGLISH_STOP_WORDS),

> InstanciatedIndex - faster but memory consuming index
> -----------------------------------------------------
>                 Key: LUCENE-550
>                 URL:
>             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,, 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
> 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
> I belive the code is quite self explaining.
> InstanciatedIndex ii = ..
> InstanciatedIndexReader();
> ii.addDocument(s).. replace IndexWriter for now.

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