org.jgap.gp.terminal

Class NOP

java.lang.Object

org.jgap.gp.CommandGene

org.jgap.gp.MathCommand

org.jgap.gp.terminal.NOP

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable

public class NOP
extends MathCommand

NO Operation. Does exactly nothing. Useful when a terminal with return type void is needed.

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
NOP(GPConfiguration a_conf)
NOP(GPConfiguration a_conf, java.lang.Class a_returnType, int a_subReturnType)
NOP(GPConfiguration a_conf, int a_subReturnType)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	execute_object(ProgramChromosome c, int n, java.lang.Object[] args) Executes this node as an object.
void	execute_void(ProgramChromosome c, int n, java.lang.Object[] args) Executes this node, returning nothing.
java.lang.String	getName()
java.lang.String	toString()

Methods inherited from class org.jgap.gp.CommandGene

cleanup, compareTo, dynamizeArity, ensureUniqueness, ensureUniqueness, ensureUniqueness2, equals, execute_boolean, execute_double, execute_float, execute_int, execute_long, execute, getAllele, getApplicationData, getArity, getChildType, getEnergy, getGPConfiguration, 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

NOP

public NOP(GPConfiguration a_conf)
    throws InvalidConfigurationException

Throws:

InvalidConfigurationException

NOP

public NOP(GPConfiguration a_conf,
           int a_subReturnType)
    throws InvalidConfigurationException

Throws:

InvalidConfigurationException

NOP

public NOP(GPConfiguration a_conf,
           java.lang.Class a_returnType,
           int a_subReturnType)
    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

Since:

3.2

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

execute_object

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

Executes this node as an object.

Overrides:

execute_object in class CommandGene

Parameters:

c - ignored here

n - ignored here

args - ignored here

Returns:

nothing but exception

Throws:

java.lang.UnsupportedOperationException

Since:

3.2.1