Package org.moeaframework.core.operator.permutation

Class Swap

java.lang.Object

org.moeaframework.core.operator.TypeSafeMutation<Permutation>

org.moeaframework.core.operator.permutation.Swap

All Implemented Interfaces:

Configurable, Named, Mutation, Variation

public class Swap
extends TypeSafeMutation<Permutation>

Swap mutation operator. Randomly selects two entries in the permutation and swaps their position.

This operator is type-safe.

Constructor Summary

Constructors

Constructor	Description
Swap()	Constructs a swap mutation operator with the default settings.
Swap(double probability)	Constructs a swap mutation operator with the specified probability of mutating a variable.

Method Summary

Modifier and Type	Method	Description
String	getName()	Returns the name of this variation operator.
void	mutate(Permutation permutation)	Mutates the specified permutation using the swap mutation operator.

Methods inherited from class org.moeaframework.core.operator.TypeSafeMutation

getProbability, mutate, setProbability

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.moeaframework.core.configuration.Configurable

applyConfiguration, getConfiguration

Methods inherited from interface org.moeaframework.core.operator.Mutation

evolve, getArity

Constructor Details

Swap

public Swap()

Constructs a swap mutation operator with the default settings.

Swap

public Swap(double probability)

Constructs a swap mutation operator with the specified probability of mutating a variable.

Parameters:

probability - the probability of mutating a variable

Method Details

getName

public String getName()

Description copied from interface: Variation

Returns the name of this variation operator. This name should also be used as the prefix for any parameters. As such, the name should only contain alphanumeric characters, avoid using whitespace and other symbols.

Returns:

the name of this variation operator

mutate

public void mutate(Permutation permutation)

Mutates the specified permutation using the swap mutation operator.

Specified by:

mutate in class TypeSafeMutation<Permutation>

Parameters:

permutation - the permutation to be mutated