For example, lets say I had a value in a route that I could get with some
simple xpath, but I needed to pass that as a parameter to a bean that would
do some calculation on that value and return it, so that I could then set it
as a header or such. Is there a way this could be done without relying on a
custom processor?
For instance, I know I can do the following to get a value from a bean
method:
<setHeader headerName="lastRunDate">
<method ref="lastRun" method="getLastRunDate"/>
</setHeader>
But what if I want to have a bean that will take in a value thatis not the
entire message body and do something with it? Such as a value resolved from
this expression:
<xpath resultType="java.lang.String">//s:randomInfo</xpath>
How can that be best accomplished? I know a custom processor allows you
full access to the headers and body, as would a bean with annotations of the
headers and body, but it seems like overkill if all I would want to do is
set and retrieve a value from a bean such as a singleton to be utilized by
the route.
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