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From "Robert Muir (JIRA)" <>
Subject [jira] Updated: (LUCENE-2265) improve automaton performance by running on byte[]
Date Mon, 05 Apr 2010 21:44:31 GMT


Robert Muir updated LUCENE-2265:

    Attachment: LUCENE-2265_utf32.patch

attached is a totally scary patch to convert the entire automaton lib to utf-32...
(i didnt mess with any search code and obviously it wont even compile with this patch)

> improve automaton performance by running on byte[]
> --------------------------------------------------
>                 Key: LUCENE-2265
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Search
>    Affects Versions: Flex Branch
>            Reporter: Robert Muir
>            Priority: Minor
>             Fix For: Flex Branch
>         Attachments: LUCENE-2265.patch, LUCENE-2265.patch, LUCENE-2265_pare.patch, LUCENE-2265_utf32.patch
> Currently, when enumerating terms, automaton must convert entire terms from flex's native
utf-8 byte[] to char[] first, then step each char thru the state machine.
> we can make this more efficient, by allowing the state machine to run on byte[], so it
can return true/false faster.

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