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From "Robert Muir (JIRA)" <>
Subject [jira] Updated: (LUCENE-2098) make BaseCharFilter more efficient in performance
Date Fri, 27 Aug 2010 06:52:55 GMT


Robert Muir updated LUCENE-2098:

    Attachment: LUCENE-2098.patch

ok, i think this one is fixed.

i ran a loop with the example doc in the tests and tested both removing the object creation
and switching to binary search, both help.

I'd like to commit to trunk and 3x tomorrow.

> make BaseCharFilter more efficient in performance
> -------------------------------------------------
>                 Key: LUCENE-2098
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>    Affects Versions: 3.1
>            Reporter: Koji Sekiguchi
>            Priority: Minor
>         Attachments: LUCENE-2098.patch, LUCENE-2098.patch
> Performance degradation in Solr 1.4 was reported. See:
> The inefficiency has been pointed out in BaseCharFilter javadoc by Mike:
> {panel}
> NOTE: This class is not particularly efficient. For example, a new class instance is
created for every call to addOffCorrectMap(int, int), which is then appended to a private
> {panel}

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