com.communote.common.util

Class PairComparator<Left,Right>

java.lang.Object

com.communote.common.util.PairComparator<Left,Right>

Type Parameters:

Left - the left side

Right - the right side

All Implemented Interfaces:

Comparator<Pair<Left,Right>>

public class PairComparator<Left,Right>
extends Object
implements Comparator<Pair<Left,Right>>

Generic Comparator for Pairs

Author:

cte

Method Summary

Modifier and Type	Method and Description
int	compare(Pair<Left,Right> o1, Pair<Left,Right> o2)
static <L,R> PairComparator<L,R>	createLeftSidePairComparator(Comparator<L> leftComparator) Creating a constructor for a comparison on the left side of the pair
static <L,R> PairComparator<L,R>	createRightSidePairComparator(Comparator<R> rightComparator) Creating a constructor for a comparison on the right side of the pair

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

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Method Detail

createLeftSidePairComparator

public static <L,R> PairComparator<L,R> createLeftSidePairComparator(Comparator<L> leftComparator)

Creating a constructor for a comparison on the left side of the pair

Type Parameters:

L - generic left side object

R - generic right side object

Parameters:

leftComparator - the comparator

Returns:

the constructor

createRightSidePairComparator

public static <L,R> PairComparator<L,R> createRightSidePairComparator(Comparator<R> rightComparator)

Creating a constructor for a comparison on the right side of the pair

Type Parameters:

L - generic left side object

R - generic right side object

Parameters:

rightComparator - the comparator

Returns:

the constructor

compare

public int compare(Pair<Left,Right> o1,
                   Pair<Left,Right> o2)

Specified by:

compare in interface Comparator<Pair<Left,Right>>