org.beryx.streamplify.combination

Class CombinationSupplier

java.lang.Object

org.beryx.streamplify.combination.CombinationSupplier

All Implemented Interfaces:

IntArraySupplier

Direct Known Subclasses:

CombinationSupplier.BigInt, CombinationSupplier.Long

public abstract class CombinationSupplier
extends java.lang.Object
implements IntArraySupplier

A value supplier for combinations.
It may compute the next combination based on the current one, or by unranking an index.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CombinationSupplier.BigInt
static class	CombinationSupplier.Long

Field Summary

Fields

Modifier and Type	Field and Description
protected int[]	currentCombination
protected int	k
protected int	n

Method Summary

Modifier and Type	Method and Description
void	computeNext() Computes the value to be supplied next, using the currently supplied value.
int[]	getCurrentSequence()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.beryx.streamplify.IntArraySupplier

getNextSequence, unrank

Field Detail

n

protected final int n

k

protected final int k

currentCombination

protected final int[] currentCombination

Method Detail

getCurrentSequence

public int[] getCurrentSequence()

Specified by:

getCurrentSequence in interface IntArraySupplier

Returns:

the current sequence provided by this value supplier

computeNext

public void computeNext()

Description copied from interface: IntArraySupplier

Computes the value to be supplied next, using the currently supplied value. The next call of IntArraySupplier.getCurrentSequence() should return this newly computed value.

Specified by:

computeNext in interface IntArraySupplier