Package org.dmfs.jems2.comparator

Class OptionalComparator<V>

java.lang.Object

org.dmfs.jems2.comparator.OptionalComparator<V>

All Implemented Interfaces:

Comparator<Optional<? extends V>>

public final class OptionalComparator<V>
extends Object
implements Comparator<Optional<? extends V>>

A Comparator for Optional values.

Absent values are always "smaller" than present values. Decorate this with GreaterAbsent to reverse this behavior.

Constructor Summary

Constructors

Constructor	Description
OptionalComparator(Comparator<? super V> delegate)

Method Summary

Modifier and Type	Method	Description
int	compare(Optional<? extends V> o1, Optional<? extends V> 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

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Details

OptionalComparator

public OptionalComparator(Comparator<? super V> delegate)

Method Details

compare

public int compare(Optional<? extends V> o1,
 Optional<? extends V> o2)

Specified by:

compare in interface Comparator<V>