org.evolvica.core.mutate.Long
Class StepMutator

java.lang.Object
  org.evolvica.engine.AbstractOperator
      org.evolvica.core.common.AbstractGeneticOperator
          org.evolvica.core.mutate.AbstractMutator
              org.evolvica.core.mutate.Long.LongMutator
                  org.evolvica.core.mutate.Long.StepMutator

All Implemented Interfaces:

IGeneticOperator, IOperator, IProcessor, java.io.Serializable

public class StepMutator

extends LongMutator

Mutation of an long number with a maximal stepsize. This operator will add a random long number within the range from 0 to a given long number. The given number can be either positive or negative.
The mutated value = value + random( 0, stepSize )

Since:

0.4.0

Version:

$Revision: 1.7 $ $Date: 2004/05/26 11:58:09 $

Author:

Andreas Rummler

See Also:

Serialized Form

Field Summary

protected long

stepSize Mutation step size.

Fields inherited from class org.evolvica.core.mutate.AbstractMutator

propability

Fields inherited from class org.evolvica.engine.AbstractOperator

descriptor, element, id, name

Constructor Summary

StepMutator()
Constructor.

StepMutator(long stepSize)
Constructor with mutation step size.

Method Summary

long	getStepSize() Returns the step size.
long	mutate(long value) Mutates a long value.
void	setStepSize(long i) Sets a new value for the step size.

Methods inherited from class org.evolvica.core.mutate.Long.LongMutator

mutate

Methods inherited from class org.evolvica.core.mutate.AbstractMutator

getPropability, process, setPropability

Methods inherited from class org.evolvica.engine.AbstractOperator

attachDescriptor, attachElement, descriptor, element, getId, getName, setId, setName

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.evolvica.engine.IOperator

attachDescriptor, attachElement, descriptor, element, getId, getName, setId, setName

Field Detail

stepSize

protected long stepSize

Mutation step size.

Constructor Detail

StepMutator

public StepMutator()

Constructor. The mutation step size is set to 10.

StepMutator

public StepMutator(long stepSize)

Constructor with mutation step size.

Parameters:

stepSize - mutation step size

Method Detail

mutate

public long mutate(long value)

Description copied from class: LongMutator

Mutates a long value.

Specified by:

mutate in class LongMutator

Parameters:

value - the value to be mutated

Returns:

the mutated value

See Also:

LongMutator.mutate(long)

getStepSize

public long getStepSize()

Returns the step size.

Returns:

step size

setStepSize

public void setStepSize(long i)

Sets a new value for the step size.

Parameters:

i - new value for the step size