Package org.apache.lucene.analysis.icu

Class ICUNormalizer2CharFilterFactory

java.lang.Object
org.apache.lucene.analysis.AbstractAnalysisFactory
org.apache.lucene.analysis.CharFilterFactory
org.apache.lucene.analysis.icu.ICUNormalizer2CharFilterFactory
public class ICUNormalizer2CharFilterFactory extends org.apache.lucene.analysis.CharFilterFactory
Factory for ICUNormalizer2CharFilter

Supports the following attributes:

  • form: A Unicode Normalization Form, one of 'nfc','nfkc', 'nfkc_cf'. Default is nfkc_cf.
  • mode: Either 'compose' or 'decompose'. Default is compose. Use "decompose" with nfc or nfkc, to get nfd or nfkd, respectively.
  • filter: A UnicodeSet pattern. Codepoints outside the set are always left unchanged. Default is [] (the null set, no filtering).
Since:
4.10.0
See Also:
SPI Name (case-insensitive: if the name is 'htmlStrip', 'htmlstrip' can be used when looking up the service).
"icuNormalizer2"

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final String
    NAME
    SPI name

    Fields inherited from class org.apache.lucene.analysis.AbstractAnalysisFactory

    LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion

  • Constructor Summary

    Constructors
    Constructor
    Description
    ICUNormalizer2CharFilterFactory()
    Default ctor for compatibility with SPI
    ICUNormalizer2CharFilterFactory(Map<String,String> args)
    Creates a new ICUNormalizer2CharFilterFactory

  • Method Summary

    Modifier and Type
    Method
    Description
    Reader
    create(Reader input)
     
    Reader
    normalize(Reader input)
     

    Methods inherited from class org.apache.lucene.analysis.CharFilterFactory

    availableCharFilters, findSPIName, forName, lookupClass, reloadCharFilters

    Methods inherited from class org.apache.lucene.analysis.AbstractAnalysisFactory

    defaultCtorException, 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 Details

  • Constructor Details

    • ICUNormalizer2CharFilterFactory

      public ICUNormalizer2CharFilterFactory(Map<String,String> args)
      Creates a new ICUNormalizer2CharFilterFactory

    • ICUNormalizer2CharFilterFactory

      public ICUNormalizer2CharFilterFactory()
      Default ctor for compatibility with SPI

  • Method Details

    • create

      public Reader create(Reader input)
      Specified by:
      create in class org.apache.lucene.analysis.CharFilterFactory

    • normalize

      public Reader normalize(Reader input)
      Overrides:
      normalize in class org.apache.lucene.analysis.CharFilterFactory