net.sf.rubycollect4j.iter

Class PermutationIterable<E>

java.lang.Object

net.sf.rubycollect4j.iter.PermutationIterable<E>

Type Parameters:

E - the type of the elements

All Implemented Interfaces:

java.lang.Iterable<RubyArray<E>>

public final class PermutationIterable<E>
extends java.lang.Object
implements java.lang.Iterable<RubyArray<E>>

PermutationIterable generates all permutations into a List with length n.

Constructor Summary

Constructors

Constructor and Description
PermutationIterable(java.util.List<? extends E> list, int n) Creates a PermutationIterable.

Method Summary

Methods

Modifier and Type	Method and Description
java.util.Iterator<RubyArray<E>>	iterator()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

PermutationIterable

public PermutationIterable(java.util.List<? extends E> list,
                   int n)

Creates a PermutationIterable.

Parameters:

list - a List

n - length of each permutation

Throws:

java.lang.NullPointerException - if list is null

Method Detail

iterator

public java.util.Iterator<RubyArray<E>> iterator()

Specified by:

iterator in interface java.lang.Iterable<RubyArray<E>>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object