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Mark Fisher
2009-07-03 23:11:00 +00:00
parent a2a216df02
commit 4e3f8510d0
1 changed files with 28 additions and 13 deletions
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spring-integration-reference/src/event.xml
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<chapter id="applicationevent">
<title>Spring ApplicationEvent Support</title>
<para>
Spring Integration also provides support for inbound and outbound <classname>ApplicationEvents</classname>.
To receive events and send to a channel, simply define an instance of Spring Integration's
<classname>ApplicationEventListeningChannelAdapter</classname>. This class is an implementation of Spring's
<interfacename>ApplicationListener</interfacename> interface. By default it will pass all received events as
Spring Integration Messages. To limit based on the type of event, configure the list of event types that you want
to receive with the 'eventTypes' property.
</para>
<para>
To send Spring <classname>ApplicationEvents</classname>, create an instance of the
<classname>ApplicationEventPublishingMessageHandler</classname> and register it within an endpoint. This
implementation of the <interfacename>MessageHandler</interfacename> interface also implements Spring's
<interfacename>ApplicationEventPublisherAware</interfacename> interface and thus acts as a bridge between
Spring Integration Messages and <classname>ApplicationEvents</classname>.
Spring Integration provides support for inbound and outbound <classname>ApplicationEvents</classname>
as defined by the underlying Spring Framework. For more information about the events and listeners,
refer to the <ulink url="http://static.springsource.org/spring/docs/2.5.x/reference/beans.html#context-functionality-events">Spring Reference Manual</ulink>.
</para>
<section id="applicationevent-inbound">
<title>Receiving Spring ApplicationEvents</title>
<para>
To receive events and send them to a channel, simply define an instance of Spring Integration's
<classname>ApplicationEventListeningChannelAdapter</classname>. This class is an implementation of
Spring's <interfacename>ApplicationListener</interfacename> interface. By default it will pass all
received events as Spring Integration Messages. To limit based on the type of event, configure the
list of event types that you want to receive with the 'eventTypes' property.
</para>
</section>
<section id="applicationevent-outbound">
<title>Sending Spring ApplicationEvents</title>
<para>
To send Spring <classname>ApplicationEvents</classname>, create an instance of the
<classname>ApplicationEventPublishingMessageHandler</classname> and register it within an endpoint.
This implementation of the <interfacename>MessageHandler</interfacename> interface also implements
Spring's <interfacename>ApplicationEventPublisherAware</interfacename> interface and thus acts as a
bridge between Spring Integration Messages and <classname>ApplicationEvents</classname>.
</para>
</section>
</chapter>