org.apache.lucene.analysis.phonetic

## Class DoubleMetaphoneFilterFactory

- java.lang.Object
- - org.apache.lucene.analysis.util.AbstractAnalysisFactory
  - - org.apache.lucene.analysis.util.TokenFilterFactory
    - - org.apache.lucene.analysis.phonetic.DoubleMetaphoneFilterFactory

-     public class DoubleMetaphoneFilterFactory
      extends TokenFilterFactory

  Factory for `DoubleMetaphoneFilter`.

       <fieldType name="text_dblmtphn" class="solr.TextField" positionIncrementGap="100">
         <analyzer>
           <tokenizer class="solr.WhitespaceTokenizerFactory"/>
           <filter class="solr.DoubleMetaphoneFilterFactory" inject="true" maxCodeLength="4"/>
         </analyzer>
       </fieldType>

  Since:
    3.1

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static int` | `DEFAULT_MAX_CODE_LENGTH` default maxCodeLength if not specified
    `static String` | `INJECT` parameter name: true if encoded tokens should be added as synonyms
    `static String` | `MAX_CODE_LENGTH` parameter name: restricts the length of the phonetic code

    - ### Fields inherited from class org.apache.lucene.analysis.util.AbstractAnalysisFactory

      `LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `DoubleMetaphoneFilterFactory(Map<String,String> args)` Creates a new DoubleMetaphoneFilterFactory

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `DoubleMetaphoneFilter` | `create(TokenStream input)`

    - ### Methods inherited from class org.apache.lucene.analysis.util.TokenFilterFactory

      `availableTokenFilters, forName, lookupClass, normalize, reloadTokenFilters`

    - ### Methods inherited from class org.apache.lucene.analysis.util.AbstractAnalysisFactory

      `get, get, get, get, get, getBoolean, getChar, getClassArg, getFloat, getInt, getLines, getLuceneMatchVersion, getOriginalArgs, getPattern, getSet, getSnowballWordSet, getWordSet, isExplicitLuceneMatchVersion, require, require, require, requireBoolean, requireChar, requireFloat, requireInt, setExplicitLuceneMatchVersion, splitAt, splitFileNames`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### INJECT

          public static final String INJECT

      parameter name: true if encoded tokens should be added as synonyms
      See Also:
        Constant Field Values

    - #### MAX_CODE_LENGTH

          public static final String MAX_CODE_LENGTH

      parameter name: restricts the length of the phonetic code
      See Also:
        Constant Field Values

    - #### DEFAULT_MAX_CODE_LENGTH

          public static final int DEFAULT_MAX_CODE_LENGTH

      default maxCodeLength if not specified
      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### DoubleMetaphoneFilterFactory

          public DoubleMetaphoneFilterFactory(Map<String,String> args)

      Creates a new DoubleMetaphoneFilterFactory

  - ### Method Detail

    - #### create

          public DoubleMetaphoneFilter create(TokenStream input)

      Specified by:
        `create` in class `TokenFilterFactory`

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