org.moeaframework.util.tree
Class While

java.lang.Object
  org.moeaframework.util.tree.Node
      org.moeaframework.util.tree.While

public class While
extends Node

The node for repeatedly executing an expression while a condition, a boolean expression, remains true. The inputs and outputs to this node are shown below:

Name	Type	Description
Argument 1	Boolean	The condition that determines how long the loop is executed
Argument 2	User-Defined	The expression to execute when the condition is true
Return Value	User-Defined	The return value of the last executed expression; or null if the loop was never executed

Constructor Summary

While()
Constructs a new node for repeatedly executing an expression while a condition remains true.

Method Summary

While	copyNode() Returns a copy of this node, but without any children or parents assigned.
Object	evaluate(Environment environment) Evaluates this node in the context of the specified environment.

Methods inherited from class org.moeaframework.util.tree.Node

copyTree, getArgument, getArgumentType, getDepth, getFunctionAt, getFunctionAt, getMaximumHeight, getMinimumHeight, getNodeAt, getNodeAt, getNodeAt, getNumberOfArguments, getNumberOfFunctions, getNumberOfFunctions, getNumberOfNodes, getNumberOfNodes, getNumberOfNodes, getNumberOfTerminals, getNumberOfTerminals, getParent, getReturnType, getTerminalAt, getTerminalAt, isFixed, isTerminal, isValid, setArgument, setFixed, setFixedTree, size, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

While

public While()

Constructs a new node for repeatedly executing an expression while a condition remains true.

Method Detail

copyNode

public While copyNode()

Description copied from class: Node

Returns a copy of this node, but without any children or parents assigned.

Specified by:

copyNode in class Node

Returns:

a copy of this node, but without any children or parents assigned

evaluate

public Object evaluate(Environment environment)

Description copied from class: Node

Evaluates this node in the context of the specified environment.

Specified by:

evaluate in class Node

Parameters:

environment - the execution environment

Returns:

the result of evaluating this node