org.evosuite.ga.localsearch

Class DefaultLocalSearchObjective<T extends Chromosome>

java.lang.Object

org.evosuite.ga.localsearch.DefaultLocalSearchObjective<T>

All Implemented Interfaces:

Serializable, LocalSearchObjective<T>

public class DefaultLocalSearchObjective<T extends Chromosome>
extends Object
implements LocalSearchObjective<T>, Serializable

The Default local search objective only stores a list of fitness functions. It cannot be used to check if an individual has changed, improved or if the objective has been reached.

Author:

Gordon Fraser

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
DefaultLocalSearchObjective()

Method Summary

Modifier and Type	Method and Description
void	addFitnessFunction(FitnessFunction<? extends Chromosome> fitness)
List<FitnessFunction<? extends Chromosome>>	getFitnessFunctions() Returns a list with all the fitness functions stored in this local search objective
int	hasChanged(T chromosome) This operation should not be invoked for this class
boolean	hasImproved(T chromosome) This operation should not be invoked for this class
boolean	hasNotWorsened(T chromosome) This operation should not be invoked for this class
boolean	isDone() This operation should not be invoked for this class
boolean	isMaximizationObjective() Returns true if all the fitness functions are maximising functions (Observe that it is not possible to store simoustaneously maximising and minimising fitness functions)

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultLocalSearchObjective

public DefaultLocalSearchObjective()

Method Detail

isDone

public boolean isDone()

This operation should not be invoked for this class

Specified by:

isDone in interface LocalSearchObjective<T extends Chromosome>

Returns:

hasImproved

public boolean hasImproved(T chromosome)

This operation should not be invoked for this class

Specified by:

hasImproved in interface LocalSearchObjective<T extends Chromosome>

Parameters:

chromosome - a Chromosome object.

Returns:

a boolean.

addFitnessFunction

public void addFitnessFunction(FitnessFunction<? extends Chromosome> fitness)

Specified by:

addFitnessFunction in interface LocalSearchObjective<T extends Chromosome>

isMaximizationObjective

public boolean isMaximizationObjective()

Description copied from interface: LocalSearchObjective

Returns true if all the fitness functions are maximising functions (Observe that it is not possible to store simoustaneously maximising and minimising fitness functions)

Specified by:

isMaximizationObjective in interface LocalSearchObjective<T extends Chromosome>

Returns:

getFitnessFunctions

public List<FitnessFunction<? extends Chromosome>> getFitnessFunctions()

Returns a list with all the fitness functions stored in this local search objective

Specified by:

getFitnessFunctions in interface LocalSearchObjective<T extends Chromosome>

Returns:

a FitnessFunction object.

hasChanged

public int hasChanged(T chromosome)

This operation should not be invoked for this class

Specified by:

hasChanged in interface LocalSearchObjective<T extends Chromosome>

Parameters:

chromosome - a Chromosome object.

Returns:

a int.

hasNotWorsened

public boolean hasNotWorsened(T chromosome)

This operation should not be invoked for this class

Specified by:

hasNotWorsened in interface LocalSearchObjective<T extends Chromosome>

Parameters:

chromosome - a Chromosome object.

Returns:

a boolean.