Class Normalization.NoNormalization
- java.lang.Object
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- org.apache.lucene.search.similarities.Normalization
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- org.apache.lucene.search.similarities.Normalization.NoNormalization
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- Enclosing class:
- Normalization
public static final class Normalization.NoNormalization extends Normalization
Implementation used when there is no normalization.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.search.similarities.Normalization
Normalization.NoNormalization
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Constructor Summary
Constructors Constructor Description NoNormalization()Sole constructor: parameter-free
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description Explanationexplain(BasicStats stats, double tf, double len)Returns an explanation for the normalized term frequency.doubletfn(BasicStats stats, double tf, double len)Returns the normalized term frequency.StringtoString()Subclasses must override this method to return the code of the normalization formula.
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Method Detail
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tfn
public double tfn(BasicStats stats, double tf, double len)
Description copied from class:NormalizationReturns the normalized term frequency.- Specified by:
tfnin classNormalizationlen- the field length.
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explain
public Explanation explain(BasicStats stats, double tf, double len)
Description copied from class:NormalizationReturns an explanation for the normalized term frequency.The default normalization methods use the field length of the document and the average field length to compute the normalized term frequency. This method provides a generic explanation for such methods. Subclasses that use other statistics must override this method.
- Overrides:
explainin classNormalization
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toString
public String toString()
Description copied from class:NormalizationSubclasses must override this method to return the code of the normalization formula. Refer to the original paper for the list.- Specified by:
toStringin classNormalization
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