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From Apache Wiki <>
Subject [Solr Wiki] Update of "SpellCheckComponent" by GrantIngersoll
Date Wed, 18 Aug 2010 15:36:14 GMT
Dear Wiki user,

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The "SpellCheckComponent" page has been changed by GrantIngersoll.


   * org.apache.solr.spelling.IndexBasedSpellChecker -- Create and use a spelling dictionary
that is based on the Solr index or an existing Lucene index
   * org.apache.solr.spelling.FileBasedSpellChecker -- Create and use a spelling dictionary
based off a flat file.  This can be useful for using Solr as a spelling server or in other
instances when spelling suggestions do not need to be based on the content of an actual index.
- == Custom Comparators and the Lucene Spell Checkers (!IndexBasedSpellChecker, !FileBasedSpellChecker)
+ == Custom Comparators and the Lucene Spell Checkers (IndexBasedSpellChecker, FileBasedSpellChecker)
  <!> [[Solr3.1]] [[Solr4.0]]
  By default, the Lucene Spell checkers sort suggestions first by the score from the string
distance calculation and second by the frequency (if available) of the suggestion in the index.
 Applications may wish to change this to better fit their scoring needs.  This can be done
when configuring the Lucene spell checker by adding the comparatorClass option to the configuration.
 This is a string value which may be one of the following:

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