org.springframework.integration.endpoint

Class PollingConsumer

java.lang.Object

org.springframework.integration.context.IntegrationObjectSupport

org.springframework.integration.endpoint.AbstractEndpoint

org.springframework.integration.endpoint.AbstractPollingEndpoint

org.springframework.integration.endpoint.PollingConsumer

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanClassLoaderAware, org.springframework.beans.factory.BeanFactoryAware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationContextAware, org.springframework.context.Lifecycle, org.springframework.context.Phased, org.springframework.context.SmartLifecycle, ExpressionCapable, IntegrationConsumer, NamedComponent

public class PollingConsumer
extends AbstractPollingEndpoint
implements IntegrationConsumer

Message Endpoint that connects any MessageHandler implementation to a PollableChannel.

Author:

Mark Fisher, Oleg Zhurakousky, Gary Russell, Artem Bilan

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

Fields inherited from interface org.springframework.context.SmartLifecycle

DEFAULT_PHASE

Constructor Summary

Constructors

Constructor and Description
PollingConsumer(org.springframework.messaging.PollableChannel inputChannel, org.springframework.messaging.MessageHandler handler)

Method Summary

Modifier and Type	Method and Description
protected void	doStart() Subclasses must implement this method with the start behavior.
protected void	doStop() Subclasses must implement this method with the stop behavior.
org.springframework.messaging.MessageHandler	getHandler() Return the consumer's handler.
org.springframework.messaging.MessageChannel	getInputChannel() Return the input channel.
org.springframework.messaging.MessageChannel	getOutputChannel() Return the output channel (may be null).
protected java.lang.String	getResourceKey() Return the key under which the resource will be made available as an attribute on the IntegrationResourceHolder.
protected java.lang.Object	getResourceToBind() Return a resource (MessageSource etc) to bind when using transaction synchronization.
protected void	handleMessage(org.springframework.messaging.Message<?> message) Handle a message.
protected org.springframework.messaging.Message<?>	receiveMessage() Obtain the next message (if one is available).
void	setReceiveTimeout(long receiveTimeout)

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

applyReceiveOnlyAdviceChain, getBeanClassLoader, getDefaultErrorChannel, getTaskExecutor, isReceiveOnlyAdvice, isSyncExecutor, onInit, setAdviceChain, setBeanClassLoader, setErrorHandler, setMaxMessagesPerPoll, setTaskExecutor, setTransactionSynchronizationFactory, setTrigger

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

destroy, doStop, getPhase, getRole, isAutoStartup, isRunning, setAutoStartup, setPhase, setRole, 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, isInitialized, 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

PollingConsumer

public PollingConsumer(org.springframework.messaging.PollableChannel inputChannel,
                       org.springframework.messaging.MessageHandler handler)

Method Detail

setReceiveTimeout

public void setReceiveTimeout(long receiveTimeout)

getInputChannel

public org.springframework.messaging.MessageChannel getInputChannel()

Description copied from interface: IntegrationConsumer

Return the input channel.

Specified by:

getInputChannel in interface IntegrationConsumer

Returns:

the input channel.

getOutputChannel

public org.springframework.messaging.MessageChannel getOutputChannel()

Description copied from interface: IntegrationConsumer

Return the output channel (may be null).

Specified by:

getOutputChannel in interface IntegrationConsumer

Returns:

the output channel.

getHandler

public org.springframework.messaging.MessageHandler getHandler()

Description copied from interface: IntegrationConsumer

Return the consumer's handler.

Specified by:

getHandler in interface IntegrationConsumer

Returns:

the handler.

doStart

protected void doStart()

Description copied from class: AbstractEndpoint

Subclasses must implement this method with the start behavior. This method will be invoked while holding the AbstractEndpoint.lifecycleLock.

Overrides:

doStart in class AbstractPollingEndpoint

doStop

protected void doStop()

Description copied from class: AbstractEndpoint

Subclasses must implement this method with the stop behavior. This method will be invoked while holding the AbstractEndpoint.lifecycleLock.

Overrides:

doStop in class AbstractPollingEndpoint

handleMessage

protected void handleMessage(org.springframework.messaging.Message<?> message)

Description copied from class: AbstractPollingEndpoint

Handle a message.

Specified by:

handleMessage in class AbstractPollingEndpoint

Parameters:

message - The message.

receiveMessage

protected org.springframework.messaging.Message<?> receiveMessage()

Description copied from class: AbstractPollingEndpoint

Obtain the next message (if one is available). MAY return null if no message is immediately available.

Specified by:

receiveMessage in class AbstractPollingEndpoint

Returns:

The message or null.

getResourceToBind

protected java.lang.Object getResourceToBind()

Description copied from class: AbstractPollingEndpoint

Return a resource (MessageSource etc) to bind when using transaction synchronization.

Overrides:

getResourceToBind in class AbstractPollingEndpoint

Returns:

The resource, or null if transaction synchronization is not required.

getResourceKey

protected java.lang.String getResourceKey()

Description copied from class: AbstractPollingEndpoint

Return the key under which the resource will be made available as an attribute on the IntegrationResourceHolder. The default ExpressionEvaluatingTransactionSynchronizationProcessor makes this attribute available as a variable in SpEL expressions.

Overrides:

getResourceKey in class AbstractPollingEndpoint

Returns:

The key, or null (default) if the resource shouldn't be made available as a attribute.