Class CartesianProductIterator<E>

java.lang.Object

edu.jas.util.CartesianProductIterator<E>

All Implemented Interfaces:

Iterator<List<E>>

class CartesianProductIterator<E>
extends Object
implements Iterator<List<E>>

Cartesian product iterator.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final List<Iterator<E>>	compit
(package private) final List<Iterable<E>>	comps	data structure.
(package private) List<E>	current
(package private) boolean	empty

Constructor Summary

Constructors

Constructor	Description
CartesianProductIterator(List<Iterable<E>> comps)	CartesianProduct iterator constructor.

Method Summary

Modifier and Type	Method	Description
boolean	hasNext()	Test for availability of a next tuple.
List<E>	next()	Get next tuple.
void	remove()	Remove a tuple if allowed.

Methods inherited from class Object

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

Methods inherited from interface Iterator

forEachRemaining

Field Details

comps

final List<Iterable<E>> comps

data structure.

compit

final List<Iterator<E>> compit

current

List<E> current

empty

boolean empty

Constructor Details

CartesianProductIterator

public CartesianProductIterator(List<Iterable<E>> comps)

CartesianProduct iterator constructor.

Parameters:

comps - components of the Cartesian product.

Method Details

hasNext

public boolean hasNext()

Test for availability of a next tuple.

Specified by:

hasNext in interface Iterator<E>

Returns:

true if the iteration has more tuples, else false.

next

public List<E> next()

Get next tuple.

Specified by:

next in interface Iterator<E>

Returns:

next tuple.

remove

public void remove()

Remove a tuple if allowed.

Specified by:

remove in interface Iterator<E>