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From "Robert Muir (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (LUCENE-2098) make BaseCharFilter more efficient in performance
Date Fri, 27 Aug 2010 14:55:57 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-2098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Muir resolved LUCENE-2098.
---------------------------------

    Resolution: Fixed

Committed 990161 (trunk) 990167 (3x)


> make BaseCharFilter more efficient in performance
> -------------------------------------------------
>
>                 Key: LUCENE-2098
>                 URL: https://issues.apache.org/jira/browse/LUCENE-2098
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/analyzers
>    Affects Versions: 3.1
>            Reporter: Koji Sekiguchi
>            Assignee: Robert Muir
>            Priority: Minor
>             Fix For: 3.1, 4.0
>
>         Attachments: LUCENE-2098.patch, LUCENE-2098.patch, LUCENE-2098.patch
>
>
> Performance degradation in Solr 1.4 was reported. See:
> http://www.lucidimagination.com/search/document/43c4bdaf5c9ec98d/html_stripping_slower_in_solr_1_4
> 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
list. 
> {panel}

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