org.uncommons.watchmaker.framework.factories
Class StringFactory

java.lang.Object
  org.uncommons.watchmaker.framework.factories.AbstractCandidateFactory<String>
      org.uncommons.watchmaker.framework.factories.StringFactory

All Implemented Interfaces:

CandidateFactory<String>

public class StringFactory
extends AbstractCandidateFactory<String>

General-purpose candidate factory for EAs that use a fixed-length String encoding. Generates random strings of a fixed length from a given alphabet.

Author:

Daniel Dyer

Constructor Summary

StringFactory(char[] alphabet, int stringLength)

Method Summary

String

generateRandomCandidate(Random rng) Generates a random string of a pre-configured length.

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

StringFactory

public StringFactory(char[] alphabet,
                     int stringLength)

Parameters:

alphabet - The set of characters that can legally occur within a string generated by this factory.

stringLength - The fixed length of all strings generated by this factory.

Method Detail

generateRandomCandidate

public String generateRandomCandidate(Random rng)

Generates a random string of a pre-configured length. Each character is randomly selected from the pre-configured alphabet. The same character may appear multiple times and some characters may not appear at all.

Parameters:

rng - A source of randomness used to select characters to make up the string.

Returns:

A randomly generated string.