org.carrot2.text.preprocessing.filter
Class SingleLabelFilterBase

java.lang.Object
  org.carrot2.text.preprocessing.filter.SingleLabelFilterBase

All Implemented Interfaces:

ILabelFilter

Direct Known Subclasses:

GenitiveLabelFilter, MinLengthLabelFilter, NumericLabelFilter, QueryLabelFilter, StopLabelFilter, StopWordLabelFilter

public abstract class SingleLabelFilterBase
extends Object
implements ILabelFilter

A base for ILabelFilter implementations that handle each label independently.

Constructor Summary

SingleLabelFilterBase()

Method Summary

abstract boolean	acceptPhrase(PreprocessingContext context, int phraseIndex) Should return true if the phrase located at phraseIndex is to be accepted, false otherwise.
abstract boolean	acceptWord(PreprocessingContext context, int wordIndex) Should return true if the word located at wordIndex is to be accepted, false otherwise.
void	filter(PreprocessingContext context, boolean[] acceptedStems, boolean[] acceptedPhrases) Called to perform label filtering.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.carrot2.text.preprocessing.filter.ILabelFilter

isEnabled

Constructor Detail

SingleLabelFilterBase

public SingleLabelFilterBase()

Method Detail

filter

public void filter(PreprocessingContext context,
                   boolean[] acceptedStems,
                   boolean[] acceptedPhrases)

Description copied from interface: ILabelFilter

Called to perform label filtering.

Specified by:

filter in interface ILabelFilter

Parameters:

context - contains words and phrases to be filtered

acceptedStems - the filter should set to false those elements that correspond to the stems to be filtered out

acceptedPhrases - the filter should set to false those elements that correspond to the phrases to be filtered out

acceptWord

public abstract boolean acceptWord(PreprocessingContext context,
                                   int wordIndex)

Should return true if the word located at wordIndex is to be accepted, false otherwise.

Parameters:

context - provides access to all information about the word

wordIndex - index of the word for which decision is to be made

acceptPhrase

public abstract boolean acceptPhrase(PreprocessingContext context,
                                     int phraseIndex)

Should return true if the phrase located at phraseIndex is to be accepted, false otherwise.

Parameters:

context - provides access to all information about the phrase

phraseIndex - index of the phrase for which decision is to be made