org.springframework.integration.handler

Class ExpressionEvaluatingMessageProcessor<T>

java.lang.Object

org.springframework.integration.util.AbstractExpressionEvaluator

org.springframework.integration.handler.AbstractMessageProcessor<T>

org.springframework.integration.handler.ExpressionEvaluatingMessageProcessor<T>

All Implemented Interfaces:

Aware, BeanFactoryAware, InitializingBean, MessageProcessor<T>

public class ExpressionEvaluatingMessageProcessor<T>
extends AbstractMessageProcessor<T>

A MessageProcessor implementation that evaluates a SpEL expression with the Message itself as the root object within the evaluation context.

Since:

2.0

Author:

Mark Fisher

Constructor Summary

Constructors

Constructor and Description
ExpressionEvaluatingMessageProcessor(Expression expression) Create an ExpressionEvaluatingMessageProcessor for the given expression.
ExpressionEvaluatingMessageProcessor(Expression expression, Class<T> expectedType) Create an ExpressionEvaluatingMessageProcessor for the given expression and expected type for its evaluation result.

Method Summary

Methods

Modifier and Type	Method and Description
T	processMessage(Message<?> message) Processes the Message by evaluating the expression with that Message as the root object.

Methods inherited from class org.springframework.integration.util.AbstractExpressionEvaluator

afterPropertiesSet, evaluateExpression, evaluateExpression, evaluateExpression, evaluateExpression, evaluateExpression, evaluateExpression, evaluateExpression, getEvaluationContext, getEvaluationContext, getMessageBuilderFactory, setBeanFactory, setConversionService

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionEvaluatingMessageProcessor

public ExpressionEvaluatingMessageProcessor(Expression expression)

Create an ExpressionEvaluatingMessageProcessor for the given expression.

Parameters:

expression - The expression.

ExpressionEvaluatingMessageProcessor

public ExpressionEvaluatingMessageProcessor(Expression expression,
                                    Class<T> expectedType)

Create an ExpressionEvaluatingMessageProcessor for the given expression and expected type for its evaluation result.

Parameters:

expression - The expression.

expectedType - The expected type.

Method Detail

processMessage

public T processMessage(Message<?> message)

Processes the Message by evaluating the expression with that Message as the root object. The expression evaluation result Object will be returned.

Specified by:

processMessage in interface MessageProcessor<T>

Specified by:

processMessage in class AbstractMessageProcessor<T>

Parameters:

message - The message.

Returns:

The result of processing the message.