org.activemq.filter.mockrunner

Class ArithmeticExpression

java.lang.Object

org.activemq.filter.mockrunner.BinaryExpression

org.activemq.filter.mockrunner.ArithmeticExpression

All Implemented Interfaces:

Expression

public abstract class ArithmeticExpression
extends BinaryExpression

Alwin Ibba: Changed package An expression which performs an operation on two expression values

Version:

$Revision: 1.3 $

Field Summary

Fields

Modifier and Type	Field and Description
protected static int	DOUBLE
protected static int	INTEGER
protected static int	LONG

Fields inherited from class org.activemq.filter.mockrunner.BinaryExpression

left, right

Constructor Summary

Constructors

Constructor and Description
ArithmeticExpression(Expression left, Expression right)

Method Summary

Methods

Modifier and Type	Method and Description
protected Number	asNumber(Object value)
static Expression	createDivide(Expression left, Expression right)
static Expression	createMinus(Expression left, Expression right)
static Expression	createMod(Expression left, Expression right)
static Expression	createMultiply(Expression left, Expression right)
static Expression	createPlus(Expression left, Expression right)
protected Number	divide(Number left, Number right)
Object	evaluate(javax.jms.Message message)
protected abstract Object	evaluate(Object lvalue, Object rvalue)
protected Number	minus(Number left, Number right)
protected Number	mod(Number left, Number right)
protected Number	multiply(Number left, Number right)
protected Number	plus(Number left, Number right)

Methods inherited from class org.activemq.filter.mockrunner.BinaryExpression

equals, getExpressionSymbol, getLeft, getRight, hashCode, setLeft, setRight, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

INTEGER

protected static final int INTEGER

See Also:

Constant Field Values

LONG

protected static final int LONG

See Also:

Constant Field Values

DOUBLE

protected static final int DOUBLE

See Also:

Constant Field Values

Constructor Detail

ArithmeticExpression

public ArithmeticExpression(Expression left,
                    Expression right)

Parameters:

left - the left expression

right - the expression on the right

Method Detail

createPlus

public static Expression createPlus(Expression left,
                    Expression right)

createMinus

public static Expression createMinus(Expression left,
                     Expression right)

createMultiply

public static Expression createMultiply(Expression left,
                        Expression right)

createDivide

public static Expression createDivide(Expression left,
                      Expression right)

createMod

public static Expression createMod(Expression left,
                   Expression right)

plus

protected Number plus(Number left,
          Number right)

minus

protected Number minus(Number left,
           Number right)

multiply

protected Number multiply(Number left,
              Number right)

divide

protected Number divide(Number left,
            Number right)

mod

protected Number mod(Number left,
         Number right)

asNumber

protected Number asNumber(Object value)

evaluate

public Object evaluate(javax.jms.Message message)
                throws javax.jms.JMSException

Parameters:

message - the message to evaluate

Returns:

the value of this expression

Throws:

javax.jms.JMSException - in case the message cannot be evaluated

evaluate

protected abstract Object evaluate(Object lvalue,
              Object rvalue)

Parameters:

lvalue - left value

rvalue - right value

Returns:

the evaluated object