Package it.unimi.dsi.fastutil.objects

Class ObjectComparators

java.lang.Object

it.unimi.dsi.fastutil.objects.ObjectComparators

public final class ObjectComparators
extends Object

A class providing static methods and objects that do useful things with comparators.

Field Summary

Fields

Modifier and Type	Field	Description
static final Comparator	NATURAL_COMPARATOR
static final Comparator	OPPOSITE_COMPARATOR

Method Summary

Modifier and Type	Method	Description
static <K> Comparator<K>	asObjectComparator(Comparator<K> c)	Returns a the comparator given unmodified.
static <K> Comparator<K>	oppositeComparator(Comparator<K> c)	Returns a comparator representing the opposite order of the given comparator.

Methods inherited from class java.lang.Object

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

Field Details

NATURAL_COMPARATOR

public static final Comparator NATURAL_COMPARATOR

OPPOSITE_COMPARATOR

public static final Comparator OPPOSITE_COMPARATOR

Method Details

oppositeComparator

public static <K> Comparator<K> oppositeComparator(Comparator<K> c)

Returns a comparator representing the opposite order of the given comparator.

Parameters:

c - a comparator.

Returns:

a comparator representing the opposite order of c.

asObjectComparator

public static <K> Comparator<K> asObjectComparator(Comparator<K> c)

Returns a the comparator given unmodified. This method merely serves as a way to be compatible with primtive type-specific Comparators implementations, as they do have type-specific Comparators, but Object ones do not.

Parameters:

c - a comparator, or null.

Returns:

c, unmodified.