de.unidu.is.text
Class StemmerFilter

java.lang.Object
  de.unidu.is.text.AbstractFilter
      de.unidu.is.text.AbstractSingleItemFilter
          de.unidu.is.text.StemmerFilter

All Implemented Interfaces:

Filter, SingleItemFilter

public class StemmerFilter

extends AbstractSingleItemFilter

This filter converts a specified string into stemmed version.

This implementation uses the nonfree version (not packaged here) if available (for backwards compatibility), and the Apache Lucene implementation otherwise.

Since:

2003-07-04

Version:

$Revision: 1.8 $, $Date: 2005/02/28 22:27:55 $

Author:

Henrik Nottelmann

Field Summary

protected SingleItemFilter

stemmerFilter Soundex filter to which calls are delegated.

Fields inherited from class de.unidu.is.text.AbstractFilter

nextFilter

Constructor Summary

StemmerFilter(Filter nextFilter)
Creates a new instance and sets the next filter in the chain.

Method Summary

java.lang.Object

run(java.lang.Object value) Converts the specified word into its stemmed version.

Methods inherited from class de.unidu.is.text.AbstractSingleItemFilter

filter

Methods inherited from class de.unidu.is.text.AbstractFilter

apply, apply

Methods inherited from class java.lang.Object

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

Field Detail

stemmerFilter

protected SingleItemFilter stemmerFilter

Soundex filter to which calls are delegated.

Constructor Detail

StemmerFilter

public StemmerFilter(Filter nextFilter)

Creates a new instance and sets the next filter in the chain.

Parameters:

nextFilter - next filter in the filter chain

Method Detail

run

public java.lang.Object run(java.lang.Object value)

Converts the specified word into its stemmed version.

Parameters:

value - word to stem

Returns:

stemmed word