Package io.atlasmap.expression.internal

Class ArithmeticExpression

java.lang.Object

io.atlasmap.expression.internal.BinaryExpression

io.atlasmap.expression.internal.ArithmeticExpression

All Implemented Interfaces:

Expression

public abstract class ArithmeticExpression
extends BinaryExpression

An expression which performs an operation on two expression values.

Version:

$Revision: 1.2 $

Field Summary

Fields

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

Fields inherited from class io.atlasmap.expression.internal.BinaryExpression

left, right

Fields inherited from interface io.atlasmap.expression.Expression

CACHE

Constructor Summary

Constructors

Constructor	Description
ArithmeticExpression(Expression left, Expression right)	Constructor.

Method Summary

Modifier and Type	Method	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)
Field	evaluate(ExpressionContext message)	Execute the expression against the given context.
protected abstract Field	evaluate(Field lvalue, Field rvalue)	Evaluate expression.
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 io.atlasmap.expression.internal.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 Details

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 Details

ArithmeticExpression

public ArithmeticExpression(Expression left,
 Expression right)

Constructor.

Parameters:

left - The left Expression

right - The right Expression

Method Details

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 Field evaluate(ExpressionContext message)
               throws ExpressionException

Description copied from interface: Expression

Execute the expression against the given context.

Parameters:

message - ExpressionContext

Returns:

Field represents a result

Throws:

ExpressionException - If evaluation fails

evaluate

protected abstract Field evaluate(Field lvalue,
 Field rvalue)

Evaluate expression.

Parameters:

lvalue - Field represents left value

rvalue - Field represents right value

Returns:

Field reporesents a result