com.epochx.representation.bool
Class NandFunction

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

All Implemented Interfaces:

java.lang.Cloneable

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

A FunctionNode which performs the logical operation of NAND that is equivalent to the negation of the conjunction or NOT AND.

Constructor Summary

NandFunction()
Construct a NandFunction with no children.

NandFunction(Node<java.lang.Boolean> child1, Node<java.lang.Boolean> child2)
Construct a NandFunction with two children.

Method Summary

java.lang.Boolean	evaluate() Evaluating a NandFunction involves combining the evaluation of the children according to the rules of NAND where if both children evaluate to true then the result will be false.
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

NandFunction

public NandFunction()

Construct a NandFunction with no children.

NandFunction

public NandFunction(Node<java.lang.Boolean> child1,
                    Node<java.lang.Boolean> child2)

Construct a NandFunction with two children. When evaluated, if both children evaluate to true then the result will be false. All other combinations will return a result of true.

Parameters:

child1 - The first child node.

child2 - The second child node.

Method Detail

evaluate

public java.lang.Boolean evaluate()

Evaluating a NandFunction involves combining the evaluation of the children according to the rules of NAND where if both children evaluate to true then the result will be false. All other combinations will return a result of 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 NandFunction which is NAND.