de.lmu.ifi.dbs.elki.utilities.pairs
Class PairUtil.CompareByFirst<FIRST,SECOND>

java.lang.Object
  de.lmu.ifi.dbs.elki.utilities.pairs.PairUtil.CompareByFirst<FIRST,SECOND>

Type Parameters:

FIRST - first type

SECOND - second type

All Implemented Interfaces:

Comparator<Pair<? extends FIRST,? extends SECOND>>

Enclosing class:

PairUtil

public static class PairUtil.CompareByFirst<FIRST,SECOND>
extends Object
implements Comparator<Pair<? extends FIRST,? extends SECOND>>

Compare two SimplePairs based on a comparator for the first component.

Field Summary

private Comparator<? super FIRST>

comparator A comparator for type P.

Constructor Summary

PairUtil.CompareByFirst(Comparator<? super FIRST> comparator)
Provides a comparator for an Pair based on the given Comparator for type P.

Method Summary

int	compare(Pair<? extends FIRST,? extends SECOND> o1, Pair<? extends FIRST,? extends SECOND> o2) To Objects of type Pair are compared based on the comparison of their property using the current PairUtil.comparator().

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Field Detail

comparator

private Comparator<? super FIRST> comparator

A comparator for type P.

Constructor Detail

PairUtil.CompareByFirst

public PairUtil.CompareByFirst(Comparator<? super FIRST> comparator)

Provides a comparator for an Pair based on the given Comparator for type P.

Parameters:

comparator - a Comparator for type P to base the comparison of an Pair on

Method Detail

compare

public int compare(Pair<? extends FIRST,? extends SECOND> o1,
                   Pair<? extends FIRST,? extends SECOND> o2)

To Objects of type Pair are compared based on the comparison of their property using the current PairUtil.comparator().

Specified by:

compare in interface Comparator<Pair<? extends FIRST,? extends SECOND>>

Parameters:

o1 - First object

o2 - Second object

Returns:

comparison result

See Also:

Comparator.compare(T, T)