de.kumpe.hadooptimizer.impl
Class EsMutatorWrapper

java.lang.Object
  de.kumpe.hadooptimizer.impl.NeedsRandomWrapperBase<EsWrappableMutator>
      de.kumpe.hadooptimizer.impl.EsMutatorWrapper

All Implemented Interfaces:

Mutator<EsIndividual>, NeedsRandomGenerator, Wrapper<EsWrappableMutator>, Serializable

public final class EsMutatorWrapper
extends NeedsRandomWrapperBase<EsWrappableMutator>
implements Mutator<EsIndividual>

Wrapp's a given EsWrappableMutator to mutate the double[] -individual nested in an EsIndividual.

It randomly increases or reduces the EsIndividual's increment by a given factor.

Author:

Christian Kumpe

See Also:

Serialized Form

Field Summary

Fields inherited from class de.kumpe.hadooptimizer.impl.NeedsRandomWrapperBase

delegate

Constructor Summary

EsMutatorWrapper(EsWrappableMutator delegate)
Creates a new EsMutatorWrapper wrapping the specified EsWrappableMutator.

EsMutatorWrapper(EsWrappableMutator delegate, double incrementFactor)
Creates a new EsMutatorWrapper wrapping the specified EsWrappableMutator.

Method Summary

boolean	equals(Object obj)
int	hashCode()
EsIndividual	mutate(EsIndividual individual) Creates a mutant of the given individual.
void	setRandomGenerator(org.apache.commons.math.random.RandomGenerator randomGenerator) Injects a RandomGenerator instance.
String	toString()

Methods inherited from class de.kumpe.hadooptimizer.impl.NeedsRandomWrapperBase

getDelegate

Methods inherited from class java.lang.Object

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

Constructor Detail

EsMutatorWrapper

public EsMutatorWrapper(EsWrappableMutator delegate)

Creates a new EsMutatorWrapper wrapping the specified EsWrappableMutator.

Parameters:

delegate - an EsWrappableMutator to wrap

EsMutatorWrapper

public EsMutatorWrapper(EsWrappableMutator delegate,
                        double incrementFactor)

Creates a new EsMutatorWrapper wrapping the specified EsWrappableMutator.

Parameters:

delegate - an EsWrappableMutator to wrap

incrementFactor - the factor by which the current increment is randomly increased or reduced

Method Detail

setRandomGenerator

public void setRandomGenerator(org.apache.commons.math.random.RandomGenerator randomGenerator)

Description copied from interface: NeedsRandomGenerator

Injects a RandomGenerator instance.

Specified by:

setRandomGenerator in interface NeedsRandomGenerator

Overrides:

setRandomGenerator in class NeedsRandomWrapperBase<EsWrappableMutator>

Parameters:

randomGenerator - the new RandomGenerator instance

mutate

public EsIndividual mutate(EsIndividual individual)

Description copied from interface: Mutator

Creates a mutant of the given individual.

The general contract is to not modify the given individual, but return a mutated copy.

Specified by:

mutate in interface Mutator<EsIndividual>

Parameters:

individual - the individual to mutate

Returns:

the mutant of the passed individual

hashCode

public int hashCode()

Overrides:

hashCode in class NeedsRandomWrapperBase<EsWrappableMutator>

equals

public boolean equals(Object obj)

Overrides:

equals in class NeedsRandomWrapperBase<EsWrappableMutator>

toString

public String toString()

Overrides:

toString in class NeedsRandomWrapperBase<EsWrappableMutator>