Package io.atlasmap.expression.internal

Class LogicExpression

java.lang.Object

io.atlasmap.expression.internal.BinaryExpression

io.atlasmap.expression.internal.LogicExpression

All Implemented Interfaces:

Expression, BooleanExpression

public abstract class LogicExpression
extends BinaryExpression
implements BooleanExpression

A filter performing a comparison of two objects.

Version:

$Revision: 1.2 $

Field Summary

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
LogicExpression(BooleanExpression left, BooleanExpression right)

Method Summary

Modifier and Type	Method	Description
static BooleanExpression	createAND(BooleanExpression lvalue, BooleanExpression rvalue)
static BooleanExpression	createOR(BooleanExpression lvalue, BooleanExpression rvalue)
abstract Field	evaluate(ExpressionContext expressionContext)	Execute the expression against the given context.
boolean	matches(ExpressionContext message)

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

Constructor Details

LogicExpression

public LogicExpression(BooleanExpression left,
 BooleanExpression right)

Parameters:

left - left BooleanExpression

right - right BooleanExpression

Method Details

createOR

public static BooleanExpression createOR(BooleanExpression lvalue,
 BooleanExpression rvalue)

createAND

public static BooleanExpression createAND(BooleanExpression lvalue,
 BooleanExpression rvalue)

evaluate

public abstract Field evaluate(ExpressionContext expressionContext)
                        throws ExpressionException

Description copied from interface: Expression

Execute the expression against the given context.

Specified by:

evaluate in interface Expression

Parameters:

expressionContext - ExpressionContext

Returns:

Field represents a result

Throws:

ExpressionException - If evaluation fails

matches

public boolean matches(ExpressionContext message)
                throws ExpressionException

Specified by:

matches in interface BooleanExpression

Parameters:

message - expression context

Returns:

true if the expression evaluates to Boolean.TRUE.

Throws:

ExpressionException - exception