org.apache.lucene.analysis.stempel

## Class StempelStemmer

- java.lang.Object
- - org.apache.lucene.analysis.stempel.StempelStemmer

-     public class StempelStemmer
      extends Object

  Stemmer class is a convenient facade for other stemmer-related classes. The core stemming algorithm and its implementation is taken verbatim from the Egothor project ( www.egothor.org ).

  Even though the stemmer tables supplied in the distribution package are built for Polish language, there is nothing language-specific here.

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `StempelStemmer(InputStream stemmerTable)` Create a Stemmer using selected stemmer table
    `StempelStemmer(Trie stemmer)` Create a Stemmer using pre-loaded stemmer table

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `static Trie` | `load(InputStream stemmerTable)` Load a stemmer table from an inputstream.
    `StringBuilder` | `stem(CharSequence word)` Stem a word.

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

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

- - ### Constructor Detail

    - #### StempelStemmer

          public StempelStemmer(InputStream stemmerTable)
                         throws IOException

      Create a Stemmer using selected stemmer table
      Parameters:
        `stemmerTable` - stemmer table.
      Throws:
        `IOException`

    - #### StempelStemmer

          public StempelStemmer(Trie stemmer)

      Create a Stemmer using pre-loaded stemmer table
      Parameters:
        `stemmer` - pre-loaded stemmer table

  - ### Method Detail

    - #### load

          public static Trie load(InputStream stemmerTable)
                           throws IOException

      Load a stemmer table from an inputstream.
      Throws:
        `IOException`

    - #### stem

          public StringBuilder stem(CharSequence word)

      Stem a word.
      Parameters:
        `word` - input word to be stemmed.
      Returns:
        stemmed word, or null if the stem could not be generated.

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