es.uam.eps.ir.ranksys.core.index

Interface FeatureIndex<F>

Type Parameters:

F - type of the features

All Known Subinterfaces:

FastFeatureData<I,F,V>, FastFeatureIndex<F>, FeatureData<I,F,V>

All Known Implementing Classes:

AbstractFastFeatureData, SimpleFastFeatureData, SimpleFastFeatureIndex, SimpleFeatureData

public interface FeatureIndex<F>

Index for a set of features.

Author:

Saúl Vargas (saul.vargas@uam.es)

Method Summary

Modifier and Type	Method and Description
boolean	containsFeature(F f) Checks whether the index contains a feature.
Stream<F>	getAllFeatures() Retrieves a stream of the indexed features.
int	numFeatures() Counts the number of indexed features.

Method Detail

containsFeature

boolean containsFeature(F f)

Checks whether the index contains a feature.

Parameters:

f - feature

Returns:

true if the index contains the feature, false otherwise

numFeatures

int numFeatures()

Counts the number of indexed features.

Returns:

the total number of features

getAllFeatures

Stream<F> getAllFeatures()

Retrieves a stream of the indexed features.

Returns:

a stream of all the features