org.jgap.gp.function

Class If

java.lang.Object

org.jgap.gp.CommandGene

org.jgap.gp.function.If

All Implemented Interfaces:

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

public class If
extends CommandGene
implements ICloneable

The if-then construct.

Since:

3.0

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

Constructor Summary

Constructors

Constructor and Description
If(GPConfiguration a_conf, java.lang.Class a_returnType)
If(GPConfiguration a_conf, java.lang.Class a_childType, java.lang.Class a_returnType)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	clone() Clones the object.
boolean	execute_boolean(ProgramChromosome c, int n, java.lang.Object[] args) Executes this node as a boolean.
double	execute_double(ProgramChromosome c, int n, java.lang.Object[] args) Executes this node as a double.
float	execute_float(ProgramChromosome c, int n, java.lang.Object[] args) Executes this node as a float.
int	execute_int(ProgramChromosome c, int n, java.lang.Object[] args) Executes this node as an integer.
long	execute_long(ProgramChromosome c, int n, java.lang.Object[] args) Executes this node as a long.
void	execute_void(ProgramChromosome c, int n, java.lang.Object[] args) Executes this node, returning nothing.
java.lang.Class	getChildType(IGPProgram prog, int index) Gets the type of node allowed from the given child number.
java.lang.String	toString()

Methods inherited from class org.jgap.gp.CommandGene

cleanup, compareTo, dynamizeArity, ensureUniqueness, ensureUniqueness, ensureUniqueness2, equals, execute_object, execute, getAllele, getApplicationData, getArity, getEnergy, getGPConfiguration, getName, getPersistentRepresentation, getReturnType, getSubChildType, getSubChildTypes, getSubReturnType, hashCode, isAffectGlobalState, isCompareApplicationData, isFloatType, isIntegerType, isValid, 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

If

public If(GPConfiguration a_conf,
          java.lang.Class a_returnType)
   throws InvalidConfigurationException

Throws:

InvalidConfigurationException

If

public If(GPConfiguration a_conf,
          java.lang.Class a_childType,
          java.lang.Class a_returnType)
   throws InvalidConfigurationException

Throws:

InvalidConfigurationException

Method Detail

getChildType

public java.lang.Class getChildType(IGPProgram prog,
                                    int index)

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:

prog - the individual the child belongs to

index - the chromosome number

Returns:

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

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.

execute_boolean

public boolean execute_boolean(ProgramChromosome c,
                               int n,
                               java.lang.Object[] args)

Description copied from class: CommandGene

Executes this node as a boolean. Override to implement.

Overrides:

execute_boolean in class CommandGene

Parameters:

c - ignored here

n - ignored here

args - ignored here

Returns:

nothing but exception

execute_int

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

Description copied from class: CommandGene

Executes this node as an integer. Override to implement.

Overrides:

execute_int in class CommandGene

Parameters:

c - ignored here

n - ignored here

args - ignored here

Returns:

nothing but exception

execute_long

public long execute_long(ProgramChromosome c,
                         int n,
                         java.lang.Object[] args)

Description copied from class: CommandGene

Executes this node as a long. Override to implement.

Overrides:

execute_long in class CommandGene

Parameters:

c - ignored here

n - ignored here

args - ignored here

Returns:

nothing but exception

execute_float

public float execute_float(ProgramChromosome c,
                           int n,
                           java.lang.Object[] args)

Description copied from class: CommandGene

Executes this node as a float. Override to implement.

Overrides:

execute_float in class CommandGene

Parameters:

c - ignored here

n - ignored here

args - ignored here

Returns:

nothing but exception

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

execute_void

public void execute_void(ProgramChromosome c,
                         int n,
                         java.lang.Object[] args)

Description copied from class: CommandGene

Executes this node, returning nothing. Override to implement.

Overrides:

execute_void in class CommandGene

Parameters:

c - ignored here

n - ignored here

args - ignored here

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

Since:

3.4