org.apache.lucene.document

Class FeatureField.FeatureFunction

java.lang.Object

org.apache.lucene.document.FeatureField.FeatureFunction

Direct Known Subclasses:

FeatureField.LogFunction, FeatureField.SaturationFunction, FeatureField.SigmoidFunction

Enclosing class:

FeatureField

abstract static class FeatureField.FeatureFunction
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
FeatureFunction()

Method Summary

Modifier and Type	Method and Description
(package private) abstract Explanation	explain(java.lang.String field, java.lang.String feature, float w, int freq)
(package private) FeatureField.FeatureFunction	rewrite(IndexReader reader)
(package private) abstract Similarity.SimScorer	scorer(float w)

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureFunction

FeatureFunction()

Method Detail

scorer

abstract Similarity.SimScorer scorer(float w)

explain

abstract Explanation explain(java.lang.String field,
                             java.lang.String feature,
                             float w,
                             int freq)

rewrite

FeatureField.FeatureFunction rewrite(IndexReader reader)
                              throws java.io.IOException

Throws:

java.io.IOException