Package org.apache.lucene.analysis.icu
Class ICUNormalizer2FilterFactory
- java.lang.Object
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- org.apache.lucene.analysis.AbstractAnalysisFactory
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- org.apache.lucene.analysis.TokenFilterFactory
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- org.apache.lucene.analysis.icu.ICUNormalizer2FilterFactory
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public class ICUNormalizer2FilterFactory extends TokenFilterFactory
Factory forICUNormalizer2FilterSupports the following attributes:
- form: A Unicode Normalization Form, one of 'nfc','nfkc', 'nfkc_cf', 'nfkc_scf'. 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
UnicodeSetpattern. Codepoints outside the set are always left unchanged. Default is [] (the null set, no filtering).
- Since:
- 3.1.0
- See Also:
ICUNormalizer2Filter,Normalizer2,FilteredNormalizer2- SPI Name (case-insensitive: if the name is 'htmlStrip', 'htmlstrip' can be used when looking up the service).
- "icuNormalizer2"
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Field Summary
Fields Modifier and Type Field Description static StringNAMESPI name-
Fields inherited from class org.apache.lucene.analysis.AbstractAnalysisFactory
LUCENE_MATCH_VERSION_PARAM, luceneMatchVersion
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Constructor Summary
Constructors Constructor Description ICUNormalizer2FilterFactory()Default ctor for compatibility with SPIICUNormalizer2FilterFactory(Map<String,String> args)Creates a new ICUNormalizer2FilterFactory
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description TokenStreamcreate(TokenStream input)TokenStreamnormalize(TokenStream input)-
Methods inherited from class org.apache.lucene.analysis.TokenFilterFactory
availableTokenFilters, findSPIName, forName, lookupClass, reloadTokenFilters
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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
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Field Detail
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NAME
public static final String NAME
SPI name- See Also:
- Constant Field Values
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Method Detail
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create
public TokenStream create(TokenStream input)
- Specified by:
createin classTokenFilterFactory
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normalize
public TokenStream normalize(TokenStream input)
- Overrides:
normalizein classTokenFilterFactory
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