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From "Michael McCandless (JIRA)" <j...@apache.org>
Subject [jira] Commented: (LUCENE-2090) convert automaton to char[] based processing and TermRef / TermsEnum api
Date Wed, 25 Nov 2009 10:28:53 GMT

    [ https://issues.apache.org/jira/browse/LUCENE-2090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12782353#action_12782353
] 

Michael McCandless commented on LUCENE-2090:
--------------------------------------------

Patch looks good, except, I think I wouldn't factor startsWith/endsWith to share any code,
to save the "+ pos" inside startsWith's loop?

{quote}
*N	1705.7ms avg -> 1195.4ms avg
*NNNNNN	1844.9ms avg -> 1192.3ms avg
{quote}

Whoa -- those are great results!

> convert automaton to char[] based processing and TermRef / TermsEnum api
> ------------------------------------------------------------------------
>
>                 Key: LUCENE-2090
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2090
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: Search
>            Reporter: Robert Muir
>            Priority: Minor
>             Fix For: 3.1
>
>         Attachments: LUCENE-2090_TermRef_flex.patch
>
>
> The automaton processing is currently done with String, mostly because TermEnum is based
on String.
> it is easy to change the processing to work with char[], since behind the scenes this
is used anyway.
> in general I think we should make sure char[] based processing is exposed in the automaton
pkg anyway, for things like pattern-based tokenizers and such.

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