org.apache.servicemix.expression

Interface Expression

All Known Implementing Classes:

ConstantExpression, FileExtensionPropertyExpression, JaxenStringXPathExpression, JaxenXPathExpression, JAXPBooleanXPathExpression, JAXPNodeSetXPathExpression, JAXPStringXPathExpression, JAXPXPathExpression, JAXPXPathXStreamExpression, PropertyExpression, XMLBeansStringXPathExpression, XMLBeansXPathExpression

public interface Expression

An expression strategy for extracting or calculating some value from a message.

Version:

$Revision: 564374 $

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	evaluate(javax.jbi.messaging.MessageExchange exchange, javax.jbi.messaging.NormalizedMessage message) Evaluates the expression on the given exchange and message.

Method Detail

evaluate

java.lang.Object evaluate(javax.jbi.messaging.MessageExchange exchange,
                        javax.jbi.messaging.NormalizedMessage message)
                          throws javax.jbi.messaging.MessagingException

Evaluates the expression on the given exchange and message.

Parameters:

exchange - the message exchange

message - the message, typically an inbound message

Returns:

the value of the expression

Throws:

javax.jbi.messaging.MessagingException