Package org.springframework.integration.jpa.outbound

Class JpaOutboundGateway

java.lang.Object

org.springframework.integration.context.IntegrationObjectSupport

org.springframework.integration.handler.MessageHandlerSupport

org.springframework.integration.handler.AbstractMessageHandler

org.springframework.integration.handler.AbstractMessageProducingHandler

org.springframework.integration.handler.AbstractReplyProducingMessageHandler

org.springframework.integration.jpa.outbound.JpaOutboundGateway

All Implemented Interfaces:

org.reactivestreams.Subscriber<Message<?>>, Aware, BeanClassLoaderAware, BeanFactoryAware, BeanNameAware, DisposableBean, InitializingBean, ApplicationContextAware, Ordered, ExpressionCapable, Orderable, MessageProducer, HeaderPropagationAware, IntegrationPattern, NamedComponent, IntegrationManagement, TrackableComponent, MessageHandler, reactor.core.CoreSubscriber<Message<?>>

public class JpaOutboundGateway
extends AbstractReplyProducingMessageHandler

The Jpa Outbound Gateway will allow you to make outbound operations to either:

• submit (insert, delete) data to a database using JPA
• retrieve (select) data from a database

Depending on the selected OutboundGatewayType, the outbound gateway will use either the JpaExecutor's poll method or its executeOutboundJpaOperation method.

In order to initialize the adapter, you must provide a JpaExecutor as constructor.

Since:

2.2

Author:

Gunnar Hillert, Amol Nayak, Artem Bilan, Gary Russell

Nested Class Summary

Nested classes/interfaces inherited from class org.springframework.integration.handler.AbstractReplyProducingMessageHandler

AbstractReplyProducingMessageHandler.RequestHandler

Nested classes/interfaces inherited from interface org.springframework.integration.support.management.IntegrationManagement

IntegrationManagement.ManagementOverrides

Field Summary

Fields inherited from class org.springframework.integration.handler.AbstractMessageProducingHandler

messagingTemplate

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

EXPRESSION_PARSER, logger

Fields inherited from interface org.springframework.integration.support.management.IntegrationManagement

METER_PREFIX, RECEIVE_COUNTER_NAME, SEND_TIMER_NAME

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

Constructors

Constructor	Description
JpaOutboundGateway(JpaExecutor jpaExecutor)	Constructor taking an JpaExecutor that wraps all JPA Operations.

Method Summary

Modifier and Type	Method	Description
String	getComponentType()	Subclasses may implement this method to provide component type information.
protected Object	handleRequestMessage(Message<?> requestMessage)	Subclasses must implement this method to handle the request Message.
void	setGatewayType(OutboundGatewayType gatewayType)	Specify the JpaOutboundGateway mode.
void	setProducesReply(boolean producesReply)	If set to 'false', this component will act as an Outbound Channel Adapter.

Methods inherited from class org.springframework.integration.handler.AbstractReplyProducingMessageHandler

doInit, doInvokeAdvisedRequestHandler, getBeanClassLoader, getIntegrationPatternType, getRequiresReply, handleMessageInternal, hasAdviceChain, onInit, setAdviceChain, setBeanClassLoader, setRequiresReply

Methods inherited from class org.springframework.integration.handler.AbstractMessageProducingHandler

addNotPropagatedHeaders, createOutputMessage, getNotPropagatedHeaders, getOutputChannel, isAsync, messageBuilderForReply, produceOutput, resolveErrorChannel, sendErrorMessage, sendOutput, sendOutputs, setAsync, setNotPropagatedHeaders, setOutputChannel, setOutputChannelName, setSendTimeout, setupMessageProcessor, shouldCopyRequestHeaders, shouldSplitOutput, updateNotPropagatedHeaders

Methods inherited from class org.springframework.integration.handler.AbstractMessageHandler

handleMessage, onComplete, onError, onNext, onSubscribe, setObservationConvention

Methods inherited from class org.springframework.integration.handler.MessageHandlerSupport

buildSendTimer, destroy, getManagedName, getManagedType, getMetricsCaptor, getObservationRegistry, getOrder, getOverrides, isLoggingEnabled, isObserved, registerMetricsCaptor, registerObservationRegistry, sendTimer, setLoggingEnabled, setManagedName, setManagedType, setOrder, setShouldTrack, shouldTrack

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

afterPropertiesSet, extractTypeIfPossible, generateId, getApplicationContext, getApplicationContextId, getBeanDescription, getBeanFactory, getBeanName, getChannelResolver, getComponentName, getConversionService, getExpression, getIntegrationProperties, getMessageBuilderFactory, getTaskScheduler, isInitialized, setApplicationContext, setBeanFactory, setBeanName, setChannelResolver, setComponentName, setConversionService, setMessageBuilderFactory, setPrimaryExpression, setTaskScheduler, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface reactor.core.CoreSubscriber

currentContext

Methods inherited from interface org.springframework.integration.support.management.IntegrationManagement

getThisAs

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

getBeanName, getComponentName

Constructor Details

JpaOutboundGateway

public JpaOutboundGateway(JpaExecutor jpaExecutor)

Constructor taking an JpaExecutor that wraps all JPA Operations.

Parameters:

jpaExecutor - Must not be null

Method Details

getComponentType

public String getComponentType()

Description copied from class: IntegrationObjectSupport

Subclasses may implement this method to provide component type information.

Specified by:

getComponentType in interface NamedComponent

Overrides:

getComponentType in class MessageHandlerSupport

handleRequestMessage

protected Object handleRequestMessage(Message<?> requestMessage)

Description copied from class: AbstractReplyProducingMessageHandler

Subclasses must implement this method to handle the request Message. The return value may be a Message, a MessageBuilder, or any plain Object. The base class will handle the final creation of a reply Message from any of those starting points. If the return value is null, the Message flow will end here.

Specified by:

handleRequestMessage in class AbstractReplyProducingMessageHandler

Parameters:

requestMessage - The request message.

Returns:

The result of handling the message, or null.

setGatewayType

public void setGatewayType(OutboundGatewayType gatewayType)

Specify the JpaOutboundGateway mode.

Parameters:

gatewayType - The gateway type.

setProducesReply

public void setProducesReply(boolean producesReply)

If set to 'false', this component will act as an Outbound Channel Adapter. If not explicitly set this property will default to 'true'.

Parameters:

producesReply - Defaults to 'true'.