org.apache.lucene.analysis.icu

## Class ICUNormalizer2CharFilter

- java.lang.Object
- - java.io.Reader
  - - org.apache.lucene.analysis.CharFilter
    - - org.apache.lucene.analysis.charfilter.BaseCharFilter
      - - org.apache.lucene.analysis.icu.ICUNormalizer2CharFilter

- All Implemented Interfaces:
    Closeable, AutoCloseable, Readable

      public final class ICUNormalizer2CharFilter
      extends BaseCharFilter

  Normalize token text with ICU's `Normalizer2`.

- - ### Field Summary

    - ### Fields inherited from class org.apache.lucene.analysis.CharFilter

      `input`

    - ### Fields inherited from class java.io.Reader

      `lock`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `ICUNormalizer2CharFilter(Reader in)` Create a new Normalizer2CharFilter that combines NFKC normalization, Case Folding, and removes Default Ignorables (NFKC_Casefold)
    `ICUNormalizer2CharFilter(Reader in, com.ibm.icu.text.Normalizer2 normalizer)` Create a new Normalizer2CharFilter with the specified Normalizer2

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `int` | `read(char[] cbuf, int off, int len)`

    - ### Methods inherited from class org.apache.lucene.analysis.charfilter.BaseCharFilter

      `addOffCorrectMap, correct, getLastCumulativeDiff`

    - ### Methods inherited from class org.apache.lucene.analysis.CharFilter

      `close, correctOffset`

    - ### Methods inherited from class java.io.Reader

      `mark, markSupported, read, read, read, ready, reset, skip`

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

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

- - ### Constructor Detail

    - #### ICUNormalizer2CharFilter

          public ICUNormalizer2CharFilter(Reader in)

      Create a new Normalizer2CharFilter that combines NFKC normalization, Case Folding, and removes Default Ignorables (NFKC_Casefold)

    - #### ICUNormalizer2CharFilter

          public ICUNormalizer2CharFilter(Reader in,
                                          com.ibm.icu.text.Normalizer2 normalizer)

      Create a new Normalizer2CharFilter with the specified Normalizer2
      Parameters:
        `in` - text
        `normalizer` - normalizer to use

  - ### Method Detail

    - #### read

          public int read(char[] cbuf,
                          int off,
                          int len)
                   throws IOException

      Specified by:
        `read` in class `Reader`
      Throws:
        `IOException`

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