org.jgap.impl
Class ReproductionOperator

java.lang.Object
  org.jgap.impl.ReproductionOperator

All Implemented Interfaces:

GeneticOperator, java.io.Serializable

public class ReproductionOperator

extends java.lang.Object

implements GeneticOperator

The reproduction operator loops through each of the Chromosomes in the population and adds them to the list of candidate chromosomes. This guarantees that each Chromosome in the current population remains a candidate for selection for the next population. Note that if a reproduction operator is not included in the list of configured genetic operators, then Chromosomes in the genotype population may not become candidates for natural selection.

Since:

1.0

Author:

Neil Rotstan, Klaus Meffert

See Also:

Serialized Form

Constructor Summary

ReproductionOperator()

Method Summary

void	operate(Population a_population, java.util.List a_candidateChromosomes) The operate method will be invoked on each of the genetic operators referenced by the current Configuration object during the evolution phase.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReproductionOperator

public ReproductionOperator()

Method Detail

operate

public void operate(Population a_population,
                    java.util.List a_candidateChromosomes)

The operate method will be invoked on each of the genetic operators referenced by the current Configuration object during the evolution phase. Operators are given an opportunity to run in the order that they are added to the Configuration. Implementations of this method may reference the population of Chromosomes as it was at the beginning of the evolutionary phase and/or they may instead reference the candidate Chromosomes, which are the results of prior genetic operators. In either case, only Chromosomes added to the list of candidate chromosomes will be considered for natural selection. Implementations should never modify the original population, but should first make copies of the Chromosomes selected for modification and operate upon the copies.

Specified by:

operate in interface GeneticOperator

Parameters:

a_population - The population of chromosomes from the current evolution prior to exposure to any genetic operators. Chromosomes in this array should never be modified.

a_candidateChromosomes - The pool of chromosomes that are candidates for the next evolved population. Only these chromosomes will go to the natural phase, so it's important to add any modified copies of Chromosomes to this list if it's desired for them to be considered for natural selection.

Since:

1.0