uk.co.cogitolearning.cogpar

Class MultiplicationExpressionNode

java.lang.Object

uk.co.cogitolearning.cogpar.SequenceExpressionNode

uk.co.cogitolearning.cogpar.MultiplicationExpressionNode

All Implemented Interfaces:

ExpressionNode

public class MultiplicationExpressionNode
extends SequenceExpressionNode

An ExpressionNode that handles multiplications and divisions. The node can hold an arbitrary number of factors that are either multiplied or divided to the product.

Nested Class Summary

Nested classes/interfaces inherited from class uk.co.cogitolearning.cogpar.SequenceExpressionNode

SequenceExpressionNode.Term

Field Summary

Fields inherited from class uk.co.cogitolearning.cogpar.SequenceExpressionNode

terms

Fields inherited from interface uk.co.cogitolearning.cogpar.ExpressionNode

ADDITION_NODE, CONSTANT_NODE, EXPONENTIATION_NODE, FUNCTION_NODE, MULTIPLICATION_NODE, VARIABLE_NODE

Constructor Summary

Constructors

Constructor and Description
MultiplicationExpressionNode() Default constructor.
MultiplicationExpressionNode(ExpressionNode node, boolean positive) Constructor to create a multiplication with the first term already added.

Method Summary

Modifier and Type	Method and Description
void	accept(ExpressionNodeVisitor visitor) Implementation of the visitor design pattern.
int	getType() Returns the type of the node, in this case ExpressionNode.MULTIPLICATION_NODE
double	getValue() Returns the value of the sub-expression that is rooted at this node.

Methods inherited from class uk.co.cogitolearning.cogpar.SequenceExpressionNode

add

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiplicationExpressionNode

public MultiplicationExpressionNode()

Default constructor.

MultiplicationExpressionNode

public MultiplicationExpressionNode(ExpressionNode node,
                                    boolean positive)

Constructor to create a multiplication with the first term already added.

Parameters:

node - the term to be added

positive - a flag indicating whether the term is multiplied or divided

Method Detail

getType

public int getType()

Returns the type of the node, in this case ExpressionNode.MULTIPLICATION_NODE

Returns:

type of the node

getValue

public double getValue()

Returns the value of the sub-expression that is rooted at this node. All the terms are evaluated and multiplied or divided to the product.

Returns:

value of expression

accept

public void accept(ExpressionNodeVisitor visitor)

Implementation of the visitor design pattern. Calls visit on the visitor and then passes the visitor on to the accept method of all the terms in the product.

Parameters:

visitor - the visitor