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From "James Dyer (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-2571) IndexBasedSpellChecker "thresholdTokenFrequency" fails with a ClassCastException on startup
Date Wed, 01 Jun 2011 19:39:47 GMT
IndexBasedSpellChecker "thresholdTokenFrequency" fails with a ClassCastException on startup
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                 Key: SOLR-2571
                 URL: https://issues.apache.org/jira/browse/SOLR-2571
             Project: Solr
          Issue Type: Bug
          Components: spellchecker
    Affects Versions: 3.1, 1.4.1, 4.0
            Reporter: James Dyer
            Priority: Minor
             Fix For: 3.3, 4.0


When parsing the configuration for thresholdTokenFrequency", the IndexBasedSpellChecker tries
to pull a Float from the DataConfig.xml-derrived NamedList.  However, this comes through as
a String.  Therefore, a ClassCastException is always thrown whenever this parameter is specified.
 The code ought to be doing "Float.parseFloat(...)" on the value.

This looks like a nice feature to use in cases the data contains misspelled or rare words
leading to spurious "correct" queries.  I would have liked to have used this with a project
we just completed however this bug prevented that.  This issue came up recently in the User's
mailing list so I am raising an issue now.

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