org.terrier.terms

Class StemmerTermPipeline

java.lang.Object

org.terrier.terms.StemmerTermPipeline

All Implemented Interfaces:

Stemmer, TermPipeline

Direct Known Subclasses:

PorterStemmer, SnowballStemmer, TRv2PorterStemmer

public abstract class StemmerTermPipeline
extends Object
implements Stemmer, TermPipeline

Abstract base class for Stemmers that are also TermPipeline instances

Since:

3.0

Author:

Craig Macdonald and Giovanni Stilo

Field Summary

Fields

Modifier and Type	Field and Description
protected TermPipeline	next

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	StemmerTermPipeline()

Method Summary

Modifier and Type	Method and Description
void	processTerm(String t) Stems the given term and passes onto the next object in the term pipeline.
boolean	reset() Implements the default operation for all TermPipeline subclasses; By default do nothing.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.terrier.terms.Stemmer

stem

Field Detail

next

protected TermPipeline next

Constructor Detail

StemmerTermPipeline

protected StemmerTermPipeline()

Method Detail

processTerm

public void processTerm(String t)

Stems the given term and passes onto the next object in the term pipeline.

Specified by:

processTerm in interface TermPipeline

Parameters:

t - String the term to stem.

reset

public boolean reset()

Implements the default operation for all TermPipeline subclasses; By default do nothing. This method should be overrided by any TermPipeline that want to implements doc/query oriented lifecycle.

Specified by:

reset in interface TermPipeline

Returns:

return how the reset has gone