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Added documentation about new HeaderValueRouter

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This commit is contained in:
Oleg Zhurakousky
2009-06-18 21:59:21 +00:00
parent ff6b0bf9dd
commit 70efddd849
1 changed files with 40 additions and 0 deletions
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spring-integration-reference/src/router.xml
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@@ -27,6 +27,46 @@
</bean>]]></programlisting>
</para>
</section>
<section id="router-implementations-headervaluerouter">
<title>HeaderValueRouter</title>
<para>
A <classname>HeaderValueRouter</classname> will send Messages to the channel based on the individual header value mappings.
When <code>HeaderValueRouter</code> is created it is initialized with the <emphasis>name</emphasis> of the header to be evaluated, using <code>constructor-arg</code>.
The <emphasis>value</emphasis> of the header could be one of two things:</para>
<para>
1. Arbitrary value
</para>
<para>
2. Channel name
</para>
<para>
If arbitrary value, then <code>channelResolver</code> should be provided to map <emphasis>header values</emphasis> to <emphasis>channel names</emphasis>.
Example below uses <code>MapBasedChannelResolver</code> to set up a map of header values to channel names.
<programlisting language="xml"><![CDATA[ <bean id="myHeaderValueRouter"
class="org.springframework.integration.router.HeaderValueRouter">
<constructor-arg value="someHeaderName" />
<property name="channelResolver">
<bean class="org.springframework.integration.channel.MapBasedChannelResolver">
<property name="channelMap">
<map>
<entry key="someHeaderValue" value-ref="channelA" />
<entry key="someOtherHeaderValue" value-ref="channelB" />
</map>
</property>
</bean>
</property>
</bean>
]]></programlisting>
If <code>channelResolver</code> is not specified, then <emphasis>header value</emphasis> will be treated as <emphasis>channel name</emphasis>
making configuration much simpler, where no <code>channelResolver</code> needs to be specified.
<programlisting language="xml"><![CDATA[
<bean id="myHeaderValueRouter"
class="org.springframework.integration.router.HeaderValueRouter">
<constructor-arg value="someHeaderName" />
</bean>
]]></programlisting>
</para>
</section>
<section id="router-implementations-recipientlistrouter">
<title>RecipientListRouter</title>
<para>