opennlp.tools.util.featuregen

Class FeatureGeneratorAdapter

java.lang.Object

opennlp.tools.util.featuregen.FeatureGeneratorAdapter

All Implemented Interfaces:

AdaptiveFeatureGenerator

Direct Known Subclasses:

AdditionalContextFeatureGenerator, BigramNameFeatureGenerator, BrownBigramFeatureGenerator, BrownTokenClassFeatureGenerator, BrownTokenFeatureGenerator, CharacterNgramFeatureGenerator, DictionaryFeatureGenerator, DocumentBeginFeatureGenerator, FastTokenClassFeatureGenerator, InSpanGenerator, OutcomePriorFeatureGenerator, PrefixFeatureGenerator, SentenceFeatureGenerator, SuffixFeatureGenerator, TokenClassFeatureGenerator, TokenFeatureGenerator, TokenPatternFeatureGenerator, TrigramNameFeatureGenerator, WordClusterFeatureGenerator

public abstract class FeatureGeneratorAdapter
extends Object
implements AdaptiveFeatureGenerator

This class provides empty implementations of some of the optional methods in AdditionalContextFeatureGenerator to make implementing feature generators easier.

Constructor Summary

Constructors

Constructor and Description
FeatureGeneratorAdapter()

Method Summary

Methods

Modifier and Type	Method and Description
void	clearAdaptiveData() Informs the feature generator that the context of the adaptive data (typically a document) is no longer valid.
void	updateAdaptiveData(String[] tokens, String[] outcomes) Informs the feature generator that the specified tokens have been classified with the corresponding set of specified outcomes.

Methods inherited from class java.lang.Object

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

Methods inherited from interface opennlp.tools.util.featuregen.AdaptiveFeatureGenerator

createFeatures

Constructor Detail

FeatureGeneratorAdapter

public FeatureGeneratorAdapter()

Method Detail

updateAdaptiveData

public void updateAdaptiveData(String[] tokens,
                      String[] outcomes)

Description copied from interface: AdaptiveFeatureGenerator

Informs the feature generator that the specified tokens have been classified with the corresponding set of specified outcomes.

Specified by:

updateAdaptiveData in interface AdaptiveFeatureGenerator

Parameters:

tokens - The tokens of the sentence or other text unit which has been processed.

outcomes - The outcomes associated with the specified tokens.

clearAdaptiveData

public void clearAdaptiveData()

Description copied from interface: AdaptiveFeatureGenerator

Informs the feature generator that the context of the adaptive data (typically a document) is no longer valid.

Specified by:

clearAdaptiveData in interface AdaptiveFeatureGenerator