com.oracle.common.base

Class InverseComparator<T>

java.lang.Object

com.oracle.common.base.InverseComparator<T>

All Implemented Interfaces:

Comparator<T>

public class InverseComparator<T>
extends Object
implements Comparator<T>

InverseComparator is a wrapper comparator which simply inverses the comparison result.

Author:

mf 2014.08.28

Field Summary

Fields

Modifier and Type	Field and Description
protected Comparator<T>	f_comparator The comparator to invert.
static InverseComparator	INSTANCE InverseComparator singleton which inverts a Comparable objects natural comparison order.

Constructor Summary

Constructors

Constructor and Description
InverseComparator(Comparator<T> comparator) Construct an InverseComparator which inverts the specified comparator.

Method Summary

Modifier and Type	Method and Description
int	compare(T o1, T o2)

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

Field Detail

f_comparator

protected final Comparator<T> f_comparator

The comparator to invert.

INSTANCE

public static final InverseComparator INSTANCE

InverseComparator singleton which inverts a Comparable objects natural comparison order.

Constructor Detail

InverseComparator

public InverseComparator(Comparator<T> comparator)

Construct an InverseComparator which inverts the specified comparator.

Parameters:

comparator - the comparator to invert

Method Detail

compare

public int compare(T o1,
                   T o2)

Specified by:

compare in interface Comparator<T>