org.uncommons.watchmaker.framework.factories
Class ObjectArrayPermutationFactory<T>

java.lang.Object
  org.uncommons.watchmaker.framework.factories.AbstractCandidateFactory<T[]>
      org.uncommons.watchmaker.framework.factories.ObjectArrayPermutationFactory<T>

Type Parameters:

T - The element type of the arrays created.

All Implemented Interfaces:

CandidateFactory<T[]>

public class ObjectArrayPermutationFactory<T>
extends AbstractCandidateFactory<T[]>

Generates random candidates from a set of elements. Each candidate is a random permutation of the full set of elements.

Author:

Daniel Dyer

Constructor Summary

ObjectArrayPermutationFactory(T[] elements)
Creates a factory that creates arrays that contain each of the specified elements exactly once.

Method Summary

T[]	generateRandomCandidate(Random rng) Generates a random permutation from the configured elements.

Methods inherited from class org.uncommons.watchmaker.framework.factories.AbstractCandidateFactory

generateInitialPopulation, generateInitialPopulation

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectArrayPermutationFactory

public ObjectArrayPermutationFactory(T[] elements)

Creates a factory that creates arrays that contain each of the specified elements exactly once. The ordering of those elements within generated arrays is random.

Parameters:

elements - The elements to permute.

Method Detail

generateRandomCandidate

public T[] generateRandomCandidate(Random rng)

Generates a random permutation from the configured elements.

Parameters:

rng - A source of randomness used to generate the random permutation.

Returns:

A random permutation.