Package opennlp.tools.util.featuregen
Class CachedFeatureGenerator
- java.lang.Object
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- opennlp.tools.util.featuregen.CachedFeatureGenerator
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- All Implemented Interfaces:
AdaptiveFeatureGenerator
public class CachedFeatureGenerator extends java.lang.Object implements AdaptiveFeatureGenerator
Caches features of the aggregatedAdaptiveFeatureGenerator
s.
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Constructor Summary
Constructors Constructor Description CachedFeatureGenerator(AdaptiveFeatureGenerator... generators)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
clearAdaptiveData()
Informs the feature generator that the context of the adaptive data (typically a document) is no longer valid.void
createFeatures(java.util.List<java.lang.String> features, java.lang.String[] tokens, int index, java.lang.String[] previousOutcomes)
Adds the appropriate features for the token at the specified index with the specified array of previous outcomes to the specified list of features.long
getNumberOfCacheHits()
Retrieves the number of times a cache hit occurred.long
getNumberOfCacheMisses()
Retrieves the number of times a cache miss occurred.java.lang.String
toString()
void
updateAdaptiveData(java.lang.String[] tokens, java.lang.String[] outcomes)
Informs the feature generator that the specified tokens have been classified with the corresponding set of specified outcomes.
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Constructor Detail
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CachedFeatureGenerator
public CachedFeatureGenerator(AdaptiveFeatureGenerator... generators)
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Method Detail
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createFeatures
public void createFeatures(java.util.List<java.lang.String> features, java.lang.String[] tokens, int index, java.lang.String[] previousOutcomes)
Description copied from interface:AdaptiveFeatureGenerator
Adds the appropriate features for the token at the specified index with the specified array of previous outcomes to the specified list of features.- Specified by:
createFeatures
in interfaceAdaptiveFeatureGenerator
- Parameters:
features
- The list of features to be added to.tokens
- The tokens of the sentence or other text unit being processed.index
- The index of the token which is currently being processed.previousOutcomes
- The outcomes for the tokens prior to the specified index.
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updateAdaptiveData
public void updateAdaptiveData(java.lang.String[] tokens, java.lang.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 interfaceAdaptiveFeatureGenerator
- Parameters:
tokens
- The tokens of the sentence or other text unit which has been processed.outcomes
- The outcomes associated with the specified tokens.
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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 interfaceAdaptiveFeatureGenerator
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getNumberOfCacheHits
public long getNumberOfCacheHits()
Retrieves the number of times a cache hit occurred.- Returns:
- number of cache hits
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getNumberOfCacheMisses
public long getNumberOfCacheMisses()
Retrieves the number of times a cache miss occurred.- Returns:
- number of cache misses
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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