org.hipparchus.genetics

Class AbstractListChromosome<T>

java.lang.Object

org.hipparchus.genetics.Chromosome

org.hipparchus.genetics.AbstractListChromosome<T>

Type Parameters:

T - type of the representation list

All Implemented Interfaces:

Comparable<Chromosome>, Fitness

Direct Known Subclasses:

BinaryChromosome, HelloWorldExample.StringChromosome, PolygonChromosome, RandomKey

public abstract class AbstractListChromosome<T>
extends Chromosome

Chromosome represented by an immutable list of a fixed length.

Constructor Summary

Constructors

Constructor and Description
AbstractListChromosome(List<T> representation) Constructor, copying the input representation.
AbstractListChromosome(List<T> representation, boolean copyList) Constructor.
AbstractListChromosome(T[] representation) Constructor, copying the input representation.

Method Summary

Modifier and Type	Method and Description
protected abstract void	checkValidity(List<T> chromosomeRepresentation) Asserts that representation can represent a valid chromosome.
int	getLength() Returns the length of the chromosome.
protected List<T>	getRepresentation() Returns the (immutable) inner representation of the chromosome.
abstract AbstractListChromosome<T>	newFixedLengthChromosome(List<T> chromosomeRepresentation) Creates a new instance of the same class as this is, with a given arrayRepresentation.
String	toString()

Methods inherited from class org.hipparchus.genetics.Chromosome

compareTo, findSameChromosome, getFitness, isSame, searchForFitnessUpdate

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hipparchus.genetics.Fitness

fitness

Constructor Detail

AbstractListChromosome

public AbstractListChromosome(List<T> representation)
                       throws MathIllegalArgumentException

Constructor, copying the input representation.

Parameters:

representation - inner representation of the chromosome

Throws:

MathIllegalArgumentException - iff the representation can not represent a valid chromosome

AbstractListChromosome

public AbstractListChromosome(T[] representation)
                       throws MathIllegalArgumentException

Constructor, copying the input representation.

Parameters:

representation - inner representation of the chromosome

Throws:

MathIllegalArgumentException - iff the representation can not represent a valid chromosome

AbstractListChromosome

public AbstractListChromosome(List<T> representation,
                              boolean copyList)

Constructor.

Parameters:

representation - inner representation of the chromosome

copyList - if true, the representation will be copied, otherwise it will be referenced.

Method Detail

checkValidity

protected abstract void checkValidity(List<T> chromosomeRepresentation)
                               throws MathIllegalArgumentException

Asserts that representation can represent a valid chromosome.

Parameters:

chromosomeRepresentation - representation of the chromosome

Throws:

MathIllegalArgumentException - iff the representation can not represent a valid chromosome

getRepresentation

protected List<T> getRepresentation()

Returns the (immutable) inner representation of the chromosome.

Returns:

the representation of the chromosome

getLength

public int getLength()

Returns the length of the chromosome.

Returns:

the length of the chromosome

newFixedLengthChromosome

public abstract AbstractListChromosome<T> newFixedLengthChromosome(List<T> chromosomeRepresentation)

Creates a new instance of the same class as this is, with a given arrayRepresentation. This is needed in crossover and mutation operators, where we need a new instance of the same class, but with different array representation.

Usually, this method just calls a constructor of the class.

Parameters:

chromosomeRepresentation - the inner array representation of the new chromosome.

Returns:

new instance extended from FixedLengthChromosome with the given arrayRepresentation

toString

public String toString()

Overrides:

toString in class Object