Class ExhaustiveGeoLocationNearestFinderImpl<D extends Comparable<? super D>>

java.lang.Object

rgu.transport.impl.ExhaustiveGeoLocationNearestFinderImpl<D>

Type Parameters:

D - the edge type

All Implemented Interfaces:

NearestFinder<GeoLocation>

public final class ExhaustiveGeoLocationNearestFinderImpl<D extends Comparable<? super D>>
extends Object
implements NearestFinder<GeoLocation>

Exhaustive search on a set of geo locations. Not exported as this requires defensive copy outside the call. Can be bypassed when the underlying set is known to be unmodifiable.

Constructor Summary

Constructors

Constructor	Description
ExhaustiveGeoLocationNearestFinderImpl(Metric<GeoLocation, D> metric, Collection<GeoLocation> elements, Predicate<D> filter)	Creates a new instance of ExhaustiveGeoLocationNearestFinderImpl.

Method Summary

Modifier and Type	Method	Description
GeoLocation	nearest(GeoLocation target)	Returns the element which is nearest to the specified target.

Methods inherited from class Object

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

Methods inherited from interface NearestFinder

cache, cache, concurrentCache, concurrentCache, nearest, nearest, nearestOrEmpty

Constructor Details

ExhaustiveGeoLocationNearestFinderImpl

public ExhaustiveGeoLocationNearestFinderImpl(Metric<GeoLocation, D> metric,
 Collection<GeoLocation> elements,
 Predicate<D> filter)

Creates a new instance of ExhaustiveGeoLocationNearestFinderImpl.

Parameters:

metric - the distance metric, not null

elements - the elements, not null, reference will be maintained to this collection for read access

filter - the filter for elements, not null, targets with no filter-accepted elements will be mapped to null

Method Details

nearest

public GeoLocation nearest(GeoLocation target)

Returns the element which is nearest to the specified target. Targets with no filter-accepted elements will be mapped to null.

Specified by:

nearest in interface NearestFinder<D extends Comparable<? super D>>

Parameters:

target - the target, not null

Returns:

the nearest match, null if no filter-accepted elements exist