it.unimi.dsi.fastutil.doubles

Interface DoubleComparator

All Superinterfaces:

java.util.Comparator<java.lang.Double>

All Known Implementing Classes:

DoubleComparators.NaturalImplicitComparator, DoubleComparators.OppositeComparator, DoubleComparators.OppositeImplicitComparator

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface DoubleComparator
extends java.util.Comparator<java.lang.Double>

A type-specific Comparator; provides methods to compare two primitive types both as objects and as primitive types.

Note that fastutil provides a corresponding abstract class that can be used to implement this interface just by specifying the type-specific comparator.

See Also:

Comparator

Method Summary

Modifier and Type	Method and Description
int	compare(double k1, double k2) Compares its two primitive-type arguments for order.
default int	compare(java.lang.Double ok1, java.lang.Double ok2) Deprecated. Please use the corresponding type-specific method instead.
default DoubleComparator	reversed()
default java.util.Comparator<java.lang.Double>	thenComparing(java.util.Comparator<? super java.lang.Double> second)
default DoubleComparator	thenComparing(DoubleComparator second) Return a new comparator that first uses this comparator, then uses the second comparator if this comparator compared the two elements as equal.

Methods inherited from interface java.util.Comparator

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

Method Detail

compare

int compare(double k1,
            double k2)

Compares its two primitive-type arguments for order. Returns a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.

Returns:

a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.

See Also:

Comparator

reversed

default DoubleComparator reversed()

Specified by:

reversed in interface java.util.Comparator<java.lang.Double>

compare

@Deprecated
default int compare(java.lang.Double ok1,
                                java.lang.Double ok2)

Deprecated. Please use the corresponding type-specific method instead.

Specified by:

compare in interface java.util.Comparator<java.lang.Double>

thenComparing

default DoubleComparator thenComparing(DoubleComparator second)

Return a new comparator that first uses this comparator, then uses the second comparator if this comparator compared the two elements as equal.

See Also:

Comparator.thenComparing(Comparator)

thenComparing

default java.util.Comparator<java.lang.Double> thenComparing(java.util.Comparator<? super java.lang.Double> second)

Specified by:

thenComparing in interface java.util.Comparator<java.lang.Double>