On Thu, Jun 7, 2012 at 8:26 AM, Alexander Kaiser <[email protected]> wrote: > Hi Claus, > > thanks for your answer! > > Isn't it so that setHeader only sets one (named) header? > So to set multiple headers from a single query I do have to use content > enricher + custom aggregation strategy? >
Yes setHeader sets only a single header. > Alexander > > 2012/6/7 Claus Ibsen <[email protected]> > >> The setHeader DSL uses an expression, so if you can write an >> expression that gets the SQL result then that can be done without a >> processor. >> You can also use the content enricher, but then you would need to >> write a custom aggregation strategy to enrich the headers. >> >> >> On Wed, Jun 6, 2012 at 11:18 PM, Alexander Kaiser >> <[email protected]> wrote: >> > Hi, >> > >> > I wonder whether it is possible to add message headers to a message based >> > on the results of a jdbc query without writing a custom processor. >> > >> > E.g. I have a message with a header 'userid'. And I have a database table >> > users which contains user's properties. >> > Now I want to use the value of the userid header to query the database >> > table users and add the columns received from the database as headers to >> > the message. >> > Further down the route I want to use the headers/properties recieved from >> > the database to make routing decisions. >> > >> > -- >> > Alexander >> >> >> >> -- >> Claus Ibsen >> ----------------- >> FuseSource >> Email: [email protected] >> Web: http://fusesource.com >> Twitter: davsclaus, fusenews >> Blog: http://davsclaus.com >> Author of Camel in Action: http://www.manning.com/ibsen >> > > > > -- > Alexander -- Claus Ibsen ----------------- FuseSource Email: [email protected] Web: http://fusesource.com Twitter: davsclaus, fusenews Blog: http://davsclaus.com Author of Camel in Action: http://www.manning.com/ibsen
