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, ApplicationContextAware, Lifecycle, Phased, SmartLifecycle, MessageProducer, IntegrationEvaluationContextAware, TrackableComponent, NamedComponent

Direct Known Subclasses:

ApplicationEventListeningMessageProducer, CacheListeningMessageProducer, ContinuousQueryMessageProducer

public abstract class ExpressionMessageProducerSupport
extends MessageProducerSupport
implements IntegrationEvaluationContextAware

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

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) Temporary, will be changed to setPayloadExpression(java.lang.String) in a future release.
void	setIntegrationEvaluationContext(EvaluationContext evaluationContext)
void	setPayloadExpression(String payloadExpression) Deprecated. in favor of setExpressionPayload(org.springframework.expression.Expression). Will be changed in a future release to use an Expression parameter.

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

doStart, doStop, sendMessage, setErrorChannel, setOutputChannel, 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, getIntegrationProperties, getIntegrationProperty, getMessageBuilderFactory, getTaskScheduler, setApplicationContext, setBeanFactory, setBeanName, setChannelResolver, setComponentName, setConversionService, setMessageBuilderFactory, 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

@Deprecated
public void setPayloadExpression(String payloadExpression)

Deprecated. in favor of setExpressionPayload(org.springframework.expression.Expression). Will be changed in a future release to use an Expression parameter.

Parameters:

payloadExpression - the expression to set.

setExpressionPayload

public void setExpressionPayload(Expression payloadExpression)

Temporary, will be changed to setPayloadExpression(java.lang.String) in a future release.

Parameters:

payloadExpression - the expression to set.

setIntegrationEvaluationContext

public void setIntegrationEvaluationContext(EvaluationContext evaluationContext)

Specified by:

setIntegrationEvaluationContext in interface IntegrationEvaluationContextAware

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)