org.springframework.integration.endpoint

Class ExpressionMessageProducerSupport

java.lang.Object

org.springframework.integration.context.IntegrationObjectSupport

org.springframework.integration.endpoint.AbstractEndpoint

org.springframework.integration.endpoint.MessageProducerSupport

org.springframework.integration.endpoint.ExpressionMessageProducerSupport

All Implemented Interfaces:

Aware, BeanFactoryAware, BeanNameAware, InitializingBean, SmartInitializingSingleton, ApplicationContextAware, Lifecycle, Phased, SmartLifecycle, ExpressionCapable, MessageProducer, NamedComponent, TrackableComponent

Direct Known Subclasses:

ApplicationEventListeningMessageProducer, CacheListeningMessageProducer, ContinuousQueryMessageProducer

public abstract class ExpressionMessageProducerSupport
extends MessageProducerSupport

A MessageProducerSupport sub-class that provides payloadExpression evaluation with result as a payload for Message to send.

Since:

2.1

Author:

David Turanski, Artem Bilan, Gary Russell

Field Summary

Fields inherited from class org.springframework.integration.endpoint.AbstractEndpoint

lifecycleCondition, lifecycleLock

Fields inherited from class org.springframework.integration.context.IntegrationObjectSupport

EXPRESSION_PARSER, logger

Constructor Summary

Constructors

Constructor and Description
ExpressionMessageProducerSupport()

Method Summary

Modifier and Type	Method and Description
protected Object	evaluatePayloadExpression(Object payload)
protected void	onInit() Subclasses may implement this for initialization logic.
void	setExpressionPayload(Expression payloadExpression) Deprecated. in favor of setPayloadExpression(org.springframework.expression.Expression).
void	setIntegrationEvaluationContext(EvaluationContext evaluationContext)
void	setPayloadExpression(Expression payloadExpression)
void	setPayloadExpressionString(String payloadExpression)

Methods inherited from class org.springframework.integration.endpoint.MessageProducerSupport

afterSingletonsInstantiated, buildErrorMessage, doStart, doStop, getErrorChannel, getErrorMessageAttributes, getMessagingTemplate, getOutputChannel, sendErrorMessageIfNecessary, sendMessage, setErrorChannel, setErrorChannelName, setErrorMessageStrategy, setOutputChannel, setOutputChannelName, setSendTimeout, setShouldTrack

Methods inherited from class org.springframework.integration.endpoint.AbstractEndpoint

doStop, getPhase, isAutoStartup, isRunning, setAutoStartup, setPhase, setTaskScheduler, start, stop, stop

Methods inherited from class org.springframework.integration.context.IntegrationObjectSupport

afterPropertiesSet, extractTypeIfPossible, getApplicationContext, getApplicationContextId, getBeanFactory, getChannelResolver, getComponentName, getComponentType, getConversionService, getExpression, getIntegrationProperties, getIntegrationProperty, getMessageBuilderFactory, getTaskScheduler, setApplicationContext, setBeanFactory, setBeanName, setChannelResolver, setComponentName, setConversionService, setMessageBuilderFactory, setPrimaryExpression, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.integration.support.context.NamedComponent

getComponentName, getComponentType

Constructor Detail

ExpressionMessageProducerSupport

public ExpressionMessageProducerSupport()

Method Detail

setPayloadExpression

public void setPayloadExpression(Expression payloadExpression)

Parameters:

payloadExpression - the expression to use.

Since:

4.3

setPayloadExpressionString

public void setPayloadExpressionString(String payloadExpression)

Parameters:

payloadExpression - the String in SpEL syntax.

Since:

4.3

setExpressionPayload

@Deprecated
public void setExpressionPayload(Expression payloadExpression)

Deprecated. in favor of setPayloadExpression(org.springframework.expression.Expression).

Parameters:

payloadExpression - the expression to set.

setIntegrationEvaluationContext

public void setIntegrationEvaluationContext(EvaluationContext evaluationContext)

onInit

protected void onInit()

Description copied from class: IntegrationObjectSupport

Subclasses may implement this for initialization logic.

Overrides:

onInit in class MessageProducerSupport

evaluatePayloadExpression

protected Object evaluatePayloadExpression(Object payload)