Module org.apache.lucene.analysis.common
Package org.apache.lucene.analysis.en

Class KStemmer

java.lang.Object
org.apache.lucene.analysis.en.KStemmer
public class KStemmer extends Object
This class implements the Kstem algorithm

  • Field Details

    • MaxWordLen

      private static final int MaxWordLen
      See Also:

    • exceptionWords

      private static final String[] exceptionWords

    • directConflations

      private static final String[][] directConflations

    • countryNationality

      private static final String[][] countryNationality

    • supplementDict

      private static final String[] supplementDict

    • properNouns

      private static final String[] properNouns

    • dict_ht

      private static final CharArrayMap<KStemmer.DictEntry> dict_ht

    • word

      private final OpenStringBuilder word
      caching off private int maxCacheSize; private CharArrayMap cache = null; private static final String SAME = "SAME"; // use if stemmed form is the same

    • j

      private int j

    • k

      private int k

    • matchedEntry

      KStemmer.DictEntry matchedEntry

    • ization

      private static char[] ization

    • ition

      private static char[] ition

    • ation

      private static char[] ation

    • ication

      private static char[] ication

    • result

      String result

  • Constructor Details

    • KStemmer

      KStemmer()

  • Method Details

    • penultChar

      private char penultChar()

    • isVowel

      private boolean isVowel(int index)

    • isCons

      private boolean isCons(int index)

    • initializeDictHash

      private static CharArrayMap<KStemmer.DictEntry> initializeDictHash()

    • isAlpha

      private boolean isAlpha(char ch)

    • stemLength

      private int stemLength()

    • endsIn

      private boolean endsIn(char[] s)

    • endsIn

      private boolean endsIn(char a, char b)

    • endsIn

      private boolean endsIn(char a, char b, char c)

    • endsIn

      private boolean endsIn(char a, char b, char c, char d)

    • wordInDict

      private KStemmer.DictEntry wordInDict()

    • plural

      private void plural()

    • setSuffix

      private void setSuffix(String s)

    • setSuff

      private void setSuff(String s, int len)

    • lookup

      private boolean lookup()

    • pastTense

      private void pastTense()

    • doubleC

      private boolean doubleC(int i)

    • vowelInStem

      private boolean vowelInStem()

    • aspect

      private void aspect()

    • ityEndings

      private void ityEndings()

    • nceEndings

      private void nceEndings()

    • nessEndings

      private void nessEndings()

    • ismEndings

      private void ismEndings()

    • mentEndings

      private void mentEndings()

    • izeEndings

      private void izeEndings()

    • ncyEndings

      private void ncyEndings()

    • bleEndings

      private void bleEndings()

    • icEndings

      private void icEndings()

    • ionEndings

      private void ionEndings()

    • erAndOrEndings

      private void erAndOrEndings()

    • lyEndings

      private void lyEndings()

    • alEndings

      private void alEndings()

    • iveEndings

      private void iveEndings()

    • stem

      String stem(String term)

    • asString

      String asString()
      Returns the result of the stem (assuming the word was changed) as a String.

    • asCharSequence

      CharSequence asCharSequence()

    • getString

      String getString()

    • getChars

      char[] getChars()

    • getLength

      int getLength()

    • matched

      private boolean matched()

    • stem

      boolean stem(char[] term, int len)
      Stems the text in the token. Returns true if changed.