Class CombinationSpliterator

java.lang.Object

one.util.streamex.CombinationSpliterator

All Implemented Interfaces:

Spliterator<int[]>

final class CombinationSpliterator
extends Object
implements Spliterator<int[]>

Nested Class Summary

Nested classes/interfaces inherited from interface Spliterator

Spliterator.OfDouble, Spliterator.OfInt, Spliterator.OfLong, Spliterator.OfPrimitive<T,T_CONS,T_SPLITR>

Field Summary

Fields

Modifier and Type	Field	Description
private final long	fence
private final int	n
private long	pos
private int[]	value

Fields inherited from interface Spliterator

CONCURRENT, DISTINCT, IMMUTABLE, NONNULL, ORDERED, SIZED, SORTED, SUBSIZED

Constructor Summary

Constructors

Constructor	Description
CombinationSpliterator(int n, long pos, long fence, int[] value)

Method Summary

Modifier and Type	Method	Description
int	characteristics()
(package private) static long	cnk(int n, int k)
long	estimateSize()
void	forEachRemaining(Consumer<? super int[]> action)
(package private) static long	gcd(long a, long b)
(package private) static int[]	jump(long newPos, int k, int n)
(package private) static void	step(int[] value, int n)
boolean	tryAdvance(Consumer<? super int[]> action)
Spliterator<int[]>	trySplit()

Methods inherited from class Object

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

Methods inherited from interface Spliterator

getComparator, getExactSizeIfKnown, hasCharacteristics

Field Details

pos

private long pos

value

private int[] value

fence

private final long fence

n

private final int n

Constructor Details

CombinationSpliterator

public CombinationSpliterator(int n,
 long pos,
 long fence,
 int[] value)

Method Details

forEachRemaining

public void forEachRemaining(Consumer<? super int[]> action)

Specified by:

forEachRemaining in interface Spliterator<int[]>

trySplit

public Spliterator<int[]> trySplit()

Specified by:

trySplit in interface Spliterator<int[]>

estimateSize

public long estimateSize()

Specified by:

estimateSize in interface Spliterator<int[]>

characteristics

public int characteristics()

Specified by:

characteristics in interface Spliterator<int[]>

step

static void step(int[] value,
 int n)

jump

static int[] jump(long newPos,
 int k,
 int n)

gcd

static long gcd(long a,
 long b)

cnk

static long cnk(int n,
 int k)

Parameters:

n - n > k

k - k > 0

Returns:

CNK(n, k)

tryAdvance

public boolean tryAdvance(Consumer<? super int[]> action)

Specified by:

tryAdvance in interface Spliterator<int[]>