com.epochx.representation.bool
Class NotFunction

java.lang.Object
  com.epochx.representation.Node<TYPE>
      com.epochx.representation.FunctionNode<java.lang.Boolean>
          com.epochx.representation.bool.NotFunction

All Implemented Interfaces:

java.lang.Cloneable

public class NotFunction
extends FunctionNode<java.lang.Boolean>

A FunctionNode which performs logical negation.

Constructor Summary

NotFunction()
Construct a NotFunction with no children.

NotFunction(Node<java.lang.Boolean> child)
Construct a NotFunction with one children.

Method Summary

java.lang.Boolean	evaluate() Evaluating a NotFunction involves evaluating the child, then negating the result.
java.lang.String	getFunctionName() Get the unique name that identifies this function.

Methods inherited from class com.epochx.representation.FunctionNode

equals, toString

Methods inherited from class com.epochx.representation.Node

clone, getArity, getChild, getChildren, getDepth, getFunctionNodes, getLength, getNodesAtDepth, getNoDistinctFunctions, getNoDistinctTerminals, getNoFunctions, getNoTerminals, getNthNode, getTerminalNodes, hashCode, setChild, setChildren, setNthNode

Methods inherited from class java.lang.Object

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

Constructor Detail

NotFunction

public NotFunction()

Construct a NotFunction with no children.

NotFunction

public NotFunction(Node<java.lang.Boolean> child)

Construct a NotFunction with one children. When evaluated, if the child evaluates to true, the result will be false. If false, the result will be true.

Parameters:

child - The child node which will be evaluated and negated.

Method Detail

evaluate

public java.lang.Boolean evaluate()

Evaluating a NotFunction involves evaluating the child, then negating the result. If the child evaluates to true, the result will be false, otherwise it will be true.

Specified by:

evaluate in class Node<java.lang.Boolean>

Returns:

The result of evaluating the candidate program.

getFunctionName

public java.lang.String getFunctionName()

Get the unique name that identifies this function.

Specified by:

getFunctionName in class FunctionNode<java.lang.Boolean>

Returns:

the unique name for the NotFunction which is NOT.