com.epochx.representation.bool
Class IfFunction

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

All Implemented Interfaces:

java.lang.Cloneable

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

A FunctionNode which represents the conditional if-then-else statement.

Constructor Summary

IfFunction()
Construct an IfFunction with no children.

IfFunction(Node<java.lang.Boolean> condition, Node<java.lang.Boolean> ifStatement, Node<java.lang.Boolean> elseStatement)
Construct an IfFunction with three children.

Method Summary

java.lang.Boolean	evaluate() Evaluating an IfFunction involves evaluating the first child, if it evaluates to true then the second child is evaluated as 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

IfFunction

public IfFunction()

Construct an IfFunction with no children.

IfFunction

public IfFunction(Node<java.lang.Boolean> condition,
                  Node<java.lang.Boolean> ifStatement,
                  Node<java.lang.Boolean> elseStatement)

Construct an IfFunction with three children. When evaluated, if the first child evaluates to true then the second child is evaluated and return, otherwise the third child is evaluated and returned.

Parameters:

condition - The first child node.

ifStatement - The second child node.

elseStatement - The third child node.

Method Detail

evaluate

public java.lang.Boolean evaluate()

Evaluating an IfFunction involves evaluating the first child, if it evaluates to true then the second child is evaluated as the result. Otherwise the third child is evaluated and returned.

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 IfFunction which is IF.