uk.co.cogitolearning.cogpar.ExpressionNode Interface Reference

An interface for expression nodes. More...

Inheritance diagram for uk.co.cogitolearning.cogpar.ExpressionNode:

Public Member Functions
int	getType ()
	Returns the type of the node.ExpressionNode.
double	getValue ()
	Calculates and returns the value of the sub-expression represented by the node.
void	accept (ExpressionNodeVisitor visitor)
	Method needed for the visitor design pattern.

Static Public Attributes
static final int	VARIABLE_NODE = 1
	Node id for variable nodes.
static final int	CONSTANT_NODE = 2
	Node id for constant nodes.
static final int	ADDITION_NODE = 3
	Node id for addition nodes.
static final int	MULTIPLICATION_NODE = 4
	Node id for multiplication nodes.
static final int	EXPONENTIATION_NODE = 5
	Node id for exponentiation nodes.
static final int	FUNCTION_NODE = 6
	Node id for function nodes.

Detailed Description

An interface for expression nodes.

Every concrete type of expression node has to implement this interface.

Definition at line 32 of file ExpressionNode.java.

Member Function Documentation

void uk.co.cogitolearning.cogpar.ExpressionNode.accept

(

ExpressionNodeVisitor

visitor

)

Method needed for the visitor design pattern.

Parameters

visitor

the visitor

Implemented in uk.co.cogitolearning.cogpar.FunctionExpressionNode, uk.co.cogitolearning.cogpar.VariableExpressionNode, uk.co.cogitolearning.cogpar.AdditionExpressionNode, uk.co.cogitolearning.cogpar.MultiplicationExpressionNode, uk.co.cogitolearning.cogpar.ConstantExpressionNode, and uk.co.cogitolearning.cogpar.ExponentiationExpressionNode.

int uk.co.cogitolearning.cogpar.ExpressionNode.getType

(

)

Returns the type of the node.ExpressionNode.

Each class derived from ExpressionNode representing a specific role in the expression should return the type according to that role.

Returns

type of the node

Implemented in uk.co.cogitolearning.cogpar.FunctionExpressionNode, uk.co.cogitolearning.cogpar.ConstantExpressionNode, uk.co.cogitolearning.cogpar.VariableExpressionNode, uk.co.cogitolearning.cogpar.AdditionExpressionNode, uk.co.cogitolearning.cogpar.MultiplicationExpressionNode, and uk.co.cogitolearning.cogpar.ExponentiationExpressionNode.

double uk.co.cogitolearning.cogpar.ExpressionNode.getValue

(

)

Calculates and returns the value of the sub-expression represented by the node.

Returns

value of expression

Implemented in uk.co.cogitolearning.cogpar.FunctionExpressionNode, uk.co.cogitolearning.cogpar.VariableExpressionNode, uk.co.cogitolearning.cogpar.AdditionExpressionNode, uk.co.cogitolearning.cogpar.MultiplicationExpressionNode, uk.co.cogitolearning.cogpar.ExponentiationExpressionNode, and uk.co.cogitolearning.cogpar.ConstantExpressionNode.

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The documentation for this interface was generated from the following file:

• ExpressionNode.java