Class GreekStemFilter

  • All Implemented Interfaces:
    Closeable, AutoCloseable

    public final class GreekStemFilter
    extends org.apache.lucene.analysis.TokenFilter
    A TokenFilter that applies GreekStemmer to stem Greek words.

    To prevent terms from being stemmed use an instance of KeywordMarkerFilter or a custom TokenFilter that sets the KeywordAttribute before this TokenStream.

    NOTE: Input is expected to be casefolded for Greek (including folding of final sigma to sigma), and with diacritics removed. This can be achieved by using either GreekLowerCaseFilter or ICUFoldingFilter before GreekStemFilter.

    WARNING: This API is experimental and might change in incompatible ways in the next release.
    • Nested Class Summary

      • Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource

        org.apache.lucene.util.AttributeSource.AttributeFactory, org.apache.lucene.util.AttributeSource.State
    • Field Summary

      • Fields inherited from class org.apache.lucene.analysis.TokenFilter

        input
    • Constructor Summary

      Constructors 
      Constructor Description
      GreekStemFilter​(org.apache.lucene.analysis.TokenStream input)  
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean incrementToken()  
      • Methods inherited from class org.apache.lucene.analysis.TokenFilter

        close, end, reset
      • Methods inherited from class org.apache.lucene.util.AttributeSource

        addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, restoreState, toString
    • Constructor Detail

      • GreekStemFilter

        public GreekStemFilter​(org.apache.lucene.analysis.TokenStream input)
    • Method Detail

      • incrementToken

        public boolean incrementToken()
                               throws IOException
        Specified by:
        incrementToken in class org.apache.lucene.analysis.TokenStream
        Throws:
        IOException