org.springframework.data.solr.core.query

Class DistanceFunction

java.lang.Object

org.springframework.data.solr.core.query.AbstractFunction

org.springframework.data.solr.core.query.DistanceFunction

All Implemented Interfaces:

Function

public class DistanceFunction
extends AbstractFunction

Implementation of dist(power, pointA, pointB)

Since:

1.1

Author:

Christoph Strobl

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DistanceFunction.Builder
static class	DistanceFunction.Power

Method Summary

Modifier and Type	Method and Description
static DistanceFunction.Builder	euclideanDistance() creates new DistanceFunction.Builder for Euclidean Distance DistanceFunction.Power.EUCLIDEAN_DISTANCE
String	getOperation() solr readable representation of function
static DistanceFunction.Builder	infiniteNormDistance() creates new DistanceFunction.Builder for Infinite norm distance - maximum value in the vector DistanceFunction.Power.INFINITE_NORM
static DistanceFunction.Builder	manhattanDistance() creates new DistanceFunction.Builder for Manhattan (taxicab) Distance DistanceFunction.Power.MANHATTAN_DISTANCE
static DistanceFunction.Builder	sparsenessDistance() creates new DistanceFunction.Builder for sparseness distance DistanceFunction.Power.SPARSENESS_CALCULATION

Methods inherited from class org.springframework.data.solr.core.query.AbstractFunction

addArgument, getArguments, hasArguments, toString

Methods inherited from class java.lang.Object

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

Method Detail

sparsenessDistance

public static DistanceFunction.Builder sparsenessDistance()

creates new DistanceFunction.Builder for sparseness distance DistanceFunction.Power.SPARSENESS_CALCULATION

Returns:

manhattanDistance

public static DistanceFunction.Builder manhattanDistance()

creates new DistanceFunction.Builder for Manhattan (taxicab) Distance DistanceFunction.Power.MANHATTAN_DISTANCE

Returns:

euclideanDistance

public static DistanceFunction.Builder euclideanDistance()

creates new DistanceFunction.Builder for Euclidean Distance DistanceFunction.Power.EUCLIDEAN_DISTANCE

Returns:

infiniteNormDistance

public static DistanceFunction.Builder infiniteNormDistance()

creates new DistanceFunction.Builder for Infinite norm distance - maximum value in the vector DistanceFunction.Power.INFINITE_NORM

Returns:

getOperation

public String getOperation()

Description copied from interface: Function

solr readable representation of function

Returns: