org.jgap.gp.function
Class GreaterThan

java.lang.Object
  org.jgap.gp.CommandGene
      org.jgap.gp.MathCommand
          org.jgap.gp.function.GreaterThan

All Implemented Interfaces:

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

public class GreaterThan
extends MathCommand
implements ICloneable

The Greater Than (x > y) operation.

Since:

3.2

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

GreaterThan(GPConfiguration a_conf, java.lang.Class a_type)

GreaterThan(GPConfiguration a_conf, java.lang.Class a_type, int a_subReturnType, int[] a_subChildTypes)

Method Summary

java.lang.Object	clone() Clones the object.
boolean	equals(java.lang.Object a_other) The equals method.
boolean	execute_boolean(ProgramChromosome c, int n, java.lang.Object[] args) Executes this node as a boolean.
java.lang.Class	getChildType(IGPProgram a_ind, int a_index) Gets the type of node allowed from the given child number.
java.lang.String	getName()
java.lang.String	toString()

Methods inherited from class org.jgap.gp.CommandGene

check, check, cleanup, compareTo, dynamizeArity, ensureUniqueness, ensureUniqueness, ensureUniqueness2, execute_double, execute_float, execute_int, execute_long, execute_object, execute_void, execute, getAllele, getApplicationData, getArity, getArityMax, getArityMin, getCommandType, getEnergy, getGPConfiguration, getInternalValue, getPersistentRepresentation, getPersistentRepresentationExt, getReturnType, getSubChildType, getSubChildTypes, getSubReturnType, hashCode, init, isAffectGlobalState, isCompareApplicationData, isFloatType, isIntegerType, isValid, isValid, setAllele, setApplicationData, setArity, setArityMax, setArityMin, setCompareApplicationData, setEnergy, setNoValidation, setReturnType, setToRandomValue, setValueFromPersistentRepresentation, setValueFromString, size

Methods inherited from class java.lang.Object

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

Constructor Detail

GreaterThan

public GreaterThan(GPConfiguration a_conf,
                   java.lang.Class a_type)
            throws InvalidConfigurationException

Throws:

InvalidConfigurationException

GreaterThan

public GreaterThan(GPConfiguration a_conf,
                   java.lang.Class a_type,
                   int a_subReturnType,
                   int[] a_subChildTypes)
            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_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

getChildType

public java.lang.Class getChildType(IGPProgram a_ind,
                                    int a_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:

a_ind - the individual the child belongs to

a_index - the chromosome number

Returns:

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

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

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

Since:

3.4.3