Package com.graphbuilder.math

Class OpNode

java.lang.Object

com.graphbuilder.math.Expression

com.graphbuilder.math.OpNode

Direct Known Subclasses:

AddNode, DivNode, MultNode, PowNode, SubNode

public abstract class OpNode
extends Expression

A node of an expression tree that has exactly 2 children, a left child and a right child. After the children are evaluated, a mathematical operation is applied and the result is returned.

Field Summary

Fields

Modifier and Type	Field	Description
protected Expression	leftChild
protected Expression	rightChild

Fields inherited from class com.graphbuilder.math.Expression

parent

Constructor Summary

Constructors

Constructor	Description
OpNode(Expression leftChild, Expression rightChild)

Method Summary

Modifier and Type	Method	Description
Expression	getLeftChild()
Expression	getRightChild()
abstract String	getSymbol()	Returns the text symbol that represents the operation.
void	setLeftChild(Expression x)
void	setRightChild(Expression x)

Methods inherited from class com.graphbuilder.math.Expression

checkBeforeAccept, eval, getFunctionNames, getParent, getVariableNames, isDescendent, toString

Methods inherited from class java.lang.Object

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

Field Details

leftChild

protected Expression leftChild

rightChild

protected Expression rightChild

Constructor Details

OpNode

public OpNode(Expression leftChild,
 Expression rightChild)

Method Details

setLeftChild

public void setLeftChild(Expression x)

setRightChild

public void setRightChild(Expression x)

getLeftChild

public Expression getLeftChild()

getRightChild

public Expression getRightChild()

getSymbol

public abstract String getSymbol()

Returns the text symbol that represents the operation.