csheets.core.formula
Class BinaryOperation

java.lang.Object
  csheets.core.formula.Operation<BinaryOperator>
      csheets.core.formula.BinaryOperation

All Implemented Interfaces:

Expression, Serializable

Direct Known Subclasses:

ReferenceOperation

public class BinaryOperation
extends Operation<BinaryOperator>

A binary operation in a formula.

Author:

Einar Pehrson

See Also:

Serialized Form

Field Summary

Fields inherited from class csheets.core.formula.Operation

operator

Constructor Summary

BinaryOperation(Expression leftOperand, BinaryOperator operator, Expression rightOperand)
Creates a new binary operation.

Method Summary

Object	accept(ExpressionVisitor visitor) Accepts to visit the given expression visitor.
Value	evaluate() Evaluates the expression and returns the result.
Expression	getLeftOperand() Returns the left(first) operand.
Expression	getRightOperand() Returns the right(second) operand.
String	toString()

Methods inherited from class csheets.core.formula.Operation

getOperator

Methods inherited from class java.lang.Object

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

Constructor Detail

BinaryOperation

public BinaryOperation(Expression leftOperand,
                       BinaryOperator operator,
                       Expression rightOperand)

Creates a new binary operation.

Parameters:

leftOperand - the left(first) operand

operator - the binary operator

rightOperand - the right(second) operand

Method Detail

evaluate

public Value evaluate()
               throws IllegalValueTypeException

Description copied from interface: Expression

Evaluates the expression and returns the result.

Returns:

the result of the evaluation

Throws:

IllegalValueTypeException - if a value of an unexpected type was encountered when evaluating the expression

getLeftOperand

public Expression getLeftOperand()

Returns the left(first) operand.

Returns:

an expression tree representing the operand

getRightOperand

public Expression getRightOperand()

Returns the right(second) operand.

Returns:

an expression tree representing the operand

accept

public Object accept(ExpressionVisitor visitor)

Description copied from interface: Expression

Accepts to visit the given expression visitor.

Parameters:

visitor - the visitor

toString

public String toString()

Overrides:

toString in class Object