org.opt4j.core.genotype

Class PermutationGenotype<E>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<E>

java.util.ArrayList<E>

org.opt4j.core.genotype.PermutationGenotype<E>

Type Parameters:

E - the type of elements

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Iterable<E>, java.util.Collection<E>, java.util.List<E>, java.util.RandomAccess, Genotype, ListGenotype<E>

public class PermutationGenotype<E>
extends java.util.ArrayList<E>
implements ListGenotype<E>

The PermutationGenotype can be used as a Genotype. The order of these elements is to be optimized.

Example problem: Select the order of five balls ball₁, ball₂, ball₃, ball₄, ball₅
Example usage:

 PermutationGenotype<Ball> genotype = new PermutationGenotype<Ball>(Arrays.asList(ball1, ball2, ball3, ball4, ball5));
 genotype.init(new Random());
 

Example instance: [ball5, ball2, ball1, ball3, ball4]
Example search space size: 5!

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor and Description
PermutationGenotype() Constructs a PermutationGenotype.
PermutationGenotype(java.util.Collection<E> values) Constructs a PermutationGenotype.

Method Summary

Modifier and Type	Method and Description
void	init(java.util.Random random) Randomizes this genotype by a random permutation.
<G extends Genotype> G	newInstance() Constructs a new (empty) instance of this Genotype.

Methods inherited from class java.util.ArrayList

add, add, addAll, addAll, clear, clone, contains, ensureCapacity, forEach, get, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, removeIf, removeRange, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray, trimToSize

Methods inherited from class java.util.AbstractList

equals, hashCode

Methods inherited from class java.util.AbstractCollection

containsAll, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.opt4j.core.Genotype

size

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, contains, containsAll, equals, get, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, replaceAll, retainAll, set, size, sort, spliterator, subList, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

PermutationGenotype

public PermutationGenotype()

Constructs a PermutationGenotype.

PermutationGenotype

public PermutationGenotype(java.util.Collection<E> values)

Constructs a PermutationGenotype.

Parameters:

values - the initial values

Method Detail

newInstance

public <G extends Genotype> G newInstance()

Description copied from interface: Genotype

Constructs a new (empty) instance of this Genotype.

Specified by:

newInstance in interface Genotype

Type Parameters:

G - the type of genotype for an implicit cast

Returns:

new instance of the genotype

init

public void init(java.util.Random random)

Randomizes this genotype by a random permutation.

Parameters:

random - the random number generator