Package org.apache.lucene.facet.taxonomy

Class AssociationAggregationFunction

java.lang.Object

org.apache.lucene.facet.taxonomy.AssociationAggregationFunction

public abstract class AssociationAggregationFunction
extends Object

Specify aggregation logic used in TaxonomyFacetIntAssociations and TaxonomyFacetFloatAssociations.

Field Summary

Fields

Modifier and Type	Field	Description
static AssociationAggregationFunction	MAX	Aggregation that computes the maximum value
static AssociationAggregationFunction	SUM	Aggregation that computes the sum

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AssociationAggregationFunction()	Sole constructor.

Method Summary

Modifier and Type	Method	Description
abstract float	aggregate(float existingVal, float newVal)	Implement aggregation logic for floats
abstract int	aggregate(int existingVal, int newVal)	Implement aggregation logic for integers

Methods inherited from class java.lang.Object

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

Field Detail

MAX

public static final AssociationAggregationFunction MAX

Aggregation that computes the maximum value

SUM

public static final AssociationAggregationFunction SUM

Aggregation that computes the sum

Constructor Detail

AssociationAggregationFunction

protected AssociationAggregationFunction()

Sole constructor.

Method Detail

aggregate

public abstract int aggregate(int existingVal,
                              int newVal)

Implement aggregation logic for integers

aggregate

public abstract float aggregate(float existingVal,
                                float newVal)

Implement aggregation logic for floats