else condition for xpath-router

[kelumt]

Hi Guys,

Just a quick question about xpath-router. in xpath-router configuration it provides kind of conditional statements based on expression.

<int-xml:xpath-router id="responderRouter" input-channel="orderChannel">
    <int-xml:xpath-expression expression="/request/responders"/>
    <int-xml:mapping value="responderA" channel="channelA"/>
    <int-xml:mapping value="responderB" channel="channelB"/>
</int-xml:xpath-router>

Does this provides ElSE functionality. i had a look at spring integration xsd as well but couldn't find any thing related to this. Is there any way of achieving this else functionality?

appreciate your help

Thanks,
Kelumt

[Gary Russell]

Add a default-output-channel

From the SI Schema (abstractRouterType):

Reference to the channel where Messages should be sent if
channel resolution fails to return any channels. If no
default output channel is provided, the router will throw an
Exception.

If you would like to silently drop those messages instead,
add the "nullChannel" as the default output channel attribute
value.