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From "Otis Gospodnetic (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-852) spellchecker: make hard-coded values configurable
Date Sat, 17 May 2008 03:21:55 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Otis Gospodnetic updated LUCENE-852:
------------------------------------

    Attachment: LUCENE-852.patch

Here is one way of specifying IndexWriter parameters.
I'll commit next week.


> spellchecker: make hard-coded values configurable
> -------------------------------------------------
>
>                 Key: LUCENE-852
>                 URL: https://issues.apache.org/jira/browse/LUCENE-852
>             Project: Lucene - Java
>          Issue Type: Improvement
>          Components: contrib/*
>            Reporter: karin
>            Assignee: Otis Gospodnetic
>            Priority: Minor
>         Attachments: LUCENE-852.patch
>
>
> the class org.apache.lucene.search.spell.SpellChecker uses the following hard-coded values
in its method
> indexDictionary:
>         writer.setMergeFactor(300);
>         writer.setMaxBufferedDocs(150);
> this poses problems when the spellcheck index is created on systems with certain limits,
i.e. in unix
> environments where the ulimit settings are restricted for the user (http://www.gossamer-threads.com/lists/lucene/java-dev/47428#47428).
> there are several ways to circumvent this:
> 1. add another indexDictionary method with additional parameters:
>     public void indexDictionary (Dictionary dict, int mergeFactor, int maxBufferedDocs)
throws IOException
>     
> 2. add setter methods for mergeFactor and maxBufferedDocs 
>     (see code in http://www.gossamer-threads.com/lists/lucene/java-dev/47428#47428 )
> 3. Make SpellChecker subclassing easier as suggested by Chris Hostetter 
>    (see reply  http://www.gossamer-threads.com/lists/lucene/java-dev/47463#47463)
> thanx,
> karin

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