org.jgap.symbolic

Class LoopD

java.lang.Object

org.jgap.gp.CommandGene

org.jgap.symbolic.LoopD

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Comparable, ICloneable

public class LoopD
extends CommandGene
implements ICloneable

A loop that executes a given number of times on double values.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.jgap.gp.CommandGene

CommandGene.COMMAND_TYPE

Field Summary

Fields inherited from class org.jgap.gp.CommandGene

BooleanClass, CharacterClass, DELTA, DoubleClass, FloatClass, IntegerClass, LongClass, nodeIndex, VoidClass

Fields inherited from interface org.jgap.util.ICloneable

CVS_REVISION

Constructor Summary

Constructors

Constructor and Description
LoopD(GPConfiguration a_conf, java.lang.Class a_typeVar, int a_count) Constructor.
LoopD(GPConfiguration a_conf, java.lang.Class a_typeVar, int a_count, int a_subReturnType, int a_subChildType)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	clone() Clones the object.
int	compareTo(java.lang.Object a_other) The compareTo-method.
boolean	equals(java.lang.Object a_other) The equals-method.
double	execute_double(ProgramChromosome c, int n, java.lang.Object[] args) Executes this node as a double.
java.lang.Class	getChildType(IGPProgram a_ind, int a_chromNum) Gets the type of node allowed from the given child number.
java.lang.String	getName()
boolean	isValid(ProgramChromosome a_program) Subclasses capable of validating programs should overwrite this method.
java.lang.String	toString()

Methods inherited from class org.jgap.gp.CommandGene

cleanup, dynamizeArity, ensureUniqueness, ensureUniqueness, ensureUniqueness2, execute_boolean, execute_float, execute_int, execute_long, execute_object, execute_void, execute, getAllele, getApplicationData, getArity, getEnergy, getGPConfiguration, getPersistentRepresentation, getReturnType, getSubChildType, getSubChildTypes, getSubReturnType, hashCode, isAffectGlobalState, isCompareApplicationData, isFloatType, isIntegerType, isValid, setAllele, setApplicationData, setCompareApplicationData, setEnergy, setNoValidation, setReturnType, setToRandomValue, setValueFromPersistentRepresentation, size

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LoopD

public LoopD(GPConfiguration a_conf,
             java.lang.Class a_typeVar,
             int a_count)
      throws InvalidConfigurationException

Constructor.

Parameters:

a_conf - the configuration to use

a_typeVar - Class of the loop counter terminakl (e.g. IntegerClass)

a_count - the number of loops to perform

Throws:

InvalidConfigurationException

LoopD

public LoopD(GPConfiguration a_conf,
             java.lang.Class a_typeVar,
             int a_count,
             int a_subReturnType,
             int a_subChildType)
      throws InvalidConfigurationException

Throws:

InvalidConfigurationException

Method Detail

toString

public java.lang.String toString()

Specified by:

toString in class CommandGene

Returns:

the string representation of the command. Especially usefull to output a resulting formula in human-readable form.

getName

public java.lang.String getName()

Overrides:

getName in class CommandGene

Returns:

textual name of this command

execute_double

public double execute_double(ProgramChromosome c,
                             int n,
                             java.lang.Object[] args)

Description copied from class: CommandGene

Executes this node as a double. Override to implement.

Overrides:

execute_double in class CommandGene

Parameters:

c - ignored here

n - ignored here

args - ignored here

Returns:

nothing but exception

isValid

public boolean isValid(ProgramChromosome a_program)

Description copied from class: CommandGene

Subclasses capable of validating programs should overwrite this method. See class Push as a sample.

Overrides:

isValid in class CommandGene

Parameters:

a_program - the ProgramChromosome to validate

Returns:

true: a_program is (superficially) valid with the current Command

getChildType

public java.lang.Class getChildType(IGPProgram a_ind,
                                    int a_chromNum)

Description copied from class: CommandGene

Gets the type of node allowed from the given child number. Should be overridden in subclasses.

Overrides:

getChildType in class CommandGene

Parameters:

a_ind - the individual the child belongs to

a_chromNum - the chromosome number

Returns:

the type of node allowed for that child, or null of no child exists

compareTo

public int compareTo(java.lang.Object a_other)

The compareTo-method.

Specified by:

compareTo in interface java.lang.Comparable

Overrides:

compareTo in class CommandGene

Parameters:

a_other - the other object to compare

Returns:

-1, 0, 1

equals

public boolean equals(java.lang.Object a_other)

The equals-method.

Overrides:

equals in class CommandGene

Parameters:

a_other - the other object to compare

Returns:

true if the objects are seen as equal

clone

public java.lang.Object clone()

Clones the object. Simple and straight forward implementation here.

Specified by:

clone in interface ICloneable

Overrides:

clone in class java.lang.Object

Returns:

cloned instance of this object