org.beryx.streamplify.product

Class CartesianProductSupplier

java.lang.Object

org.beryx.streamplify.product.CartesianProductSupplier

All Implemented Interfaces:

IntArraySupplier

Direct Known Subclasses:

CartesianProductSupplier.BigInt, CartesianProductSupplier.Long

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

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

Nested Class Summary

Nested Classes

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

Field Summary

Fields

Modifier and Type	Field and Description
protected int[]	currentProduct
protected int[]	dimensions

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

dimensions

protected final int[] dimensions

currentProduct

protected final int[] currentProduct

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