Select_RequestHandler_With_Spellcheck

  <requestHandler name="/select" class="solr.SearchHandler">
     <lst name="defaults">
      <str name="echoParams">explicit</str>
      <int name="rows">10</int>
           <!-- Spellcheck default. Solr will use suggestions from both the 'default' spellchecker
           and from the 'wordbreak' spellchecker and combine them.
           collations (re-written queries) can include a combination of
           corrections from both spellcheckers -->
      <str name="spellcheck.dictionary">default</str>
      <str name="spellcheck.dictionary">wordbreak</str>
      <str name="spellcheck">on</str>
      <str name="spellcheck.extendedResults">true</str>       
      <str name="spellcheck.count">10</str>
      <str name="spellcheck.alternativeTermCount">5</str>
      <str name="spellcheck.maxResultsForSuggest">5</str>       
      <str name="spellcheck.collate">true</str>
      <str name="spellcheck.collateExtendedResults">true</str>  
      <str name="spellcheck.maxCollationTries">10</str>
      <str name="spellcheck.maxCollations">5</str>   
    </lst>
  <arr name="last-components">
      <str>spellcheck</str>
    </arr>
    </requestHandler>

solr_spellcheck_component_definition

 
   <!-- Spell Check

        The spell check component can return a list of alternative spelling
        suggestions.  

        http://wiki.apache.org/solr/SpellCheckComponent
     -->
  <searchComponent name="spellcheck" class="solr.SpellCheckComponent">

    <str name="queryAnalyzerFieldType">text_general</str>

    <!-- Multiple "Spell Checkers" can be declared and used by this
         component
      -->

    <!-- a spellchecker built from a field of the main index -->
    <lst name="spellchecker">
      <str name="name">default</str>
      <str name="field">text</str>
      <str name="classname">solr.DirectSolrSpellChecker</str>
      <!-- the spellcheck distance measure used, the default is the internal levenshtein -->
      <str name="distanceMeasure">internal</str>
      <!-- minimum accuracy needed to be considered a valid spellcheck suggestion -->
      <float name="accuracy">0.5</float>
      <!-- the maximum #edits we consider when enumerating terms: can be 1 or 2 -->
      <int name="maxEdits">2</int>
      <!-- the minimum shared prefix when enumerating terms -->
      <int name="minPrefix">1</int>
      <!-- maximum number of inspections per result. -->
      <int name="maxInspections">5</int>
      <!-- minimum length of a query term to be considered for correction -->
      <int name="minQueryLength">4</int>
      <!-- maximum threshold of documents a query term can appear to be considered for correction -->
      <float name="maxQueryFrequency">0.01</float>
      <!-- uncomment this to require suggestions to occur in 1% of the documents
      	<float name="thresholdTokenFrequency">.01</float>
      -->
    </lst>
    
    <!-- a spellchecker that can break or combine words.  See "/spell" handler below for usage -->
    <lst name="spellchecker">
      <str name="name">wordbreak</str>
      <str name="classname">solr.WordBreakSolrSpellChecker</str>      
      <str name="field">name</str>
      <str name="combineWords">true</str>
      <str name="breakWords">true</str>
      <int name="maxChanges">10</int>
    </lst>

    <!-- a spellchecker that uses a different distance measure -->
    <!--
       <lst name="spellchecker">
         <str name="name">jarowinkler</str>
         <str name="field">spell</str>
         <str name="classname">solr.DirectSolrSpellChecker</str>
         <str name="distanceMeasure">
           org.apache.lucene.search.spell.JaroWinklerDistance
         </str>
       </lst>
     -->

    <!-- a spellchecker that use an alternate comparator 

         comparatorClass be one of:
          1. score (default)
          2. freq (Frequency first, then score)
          3. A fully qualified class name
      -->
    <!--
       <lst name="spellchecker">
         <str name="name">freq</str>
         <str name="field">lowerfilt</str>
         <str name="classname">solr.DirectSolrSpellChecker</str>
         <str name="comparatorClass">freq</str>
      -->

    <!-- A spellchecker that reads the list of words from a file -->
    <!--
       <lst name="spellchecker">
         <str name="classname">solr.FileBasedSpellChecker</str>
         <str name="name">file</str>
         <str name="sourceLocation">spellings.txt</str>
         <str name="characterEncoding">UTF-8</str>
         <str name="spellcheckIndexDir">spellcheckerFile</str>
       </lst>
      -->
  </searchComponent>