You are viewing a plain text version of this content. The canonical link for it is here.

Posted to users@camel.apache.org by gilboy <jo...@gmail.com> on 2013/01/12 00:01:39 UTC

MEP Query

Hi

Assume I have the following route:

*from(endpoint1).to(endpoint2).to(endpoint3).to(endpoint4)
*
What dictates the MEP on the exchange. Is it the consumer for endpoint1
since it creates the exchange?

Or can the MEP change throughout the route, e.g. could the producer for
endpoint3 change the MEP?

Thanks
Joe



--
View this message in context: http://camel.465427.n5.nabble.com/MEP-Query-tp5725428.html
Sent from the Camel - Users mailing list archive at Nabble.com.

Re: MEP Query

Posted by Claus Ibsen <cl...@gmail.com>.

On Sun, Jan 13, 2013 at 12:40 AM, gilboy <jo...@gmail.com> wrote:
> Thanks for the response.
>
> Sorry - 1 other question on this. If my route looks like:
>
> *from(endpoint1).to(endpoint2).to(endpoint3).to(endpoint4) *
>
> Assume the consumer for endpoint1 sets the MEP to InOut. If endpoint4 is a
> file endpoint what gets returned to the producer, i.e. the file endpoint
> only supports InOnly. Would it be the response from endpoint3?
>

Yes the above route is using the pipes and filters eip mode by default.
So output from previous is input to next.

http://camel.apache.org/pipes-and-filters.html

The pipeline is the default mode so that is why you can omit it.



> Thanks
> Joe
>
>
>
> --
> View this message in context: http://camel.465427.n5.nabble.com/MEP-Query-tp5725428p5725476.html
> Sent from the Camel - Users mailing list archive at Nabble.com.



-- 
Claus Ibsen
-----------------
Red Hat, Inc.
FuseSource is now part of Red Hat
Email: cibsen@redhat.com
Web: http://fusesource.com
Twitter: davsclaus
Blog: http://davsclaus.com
Author of Camel in Action: http://www.manning.com/ibsen

Re: MEP Query

Posted by gilboy <jo...@gmail.com>.

Thanks for the response.

Sorry - 1 other question on this. If my route looks like:

*from(endpoint1).to(endpoint2).to(endpoint3).to(endpoint4) *

Assume the consumer for endpoint1 sets the MEP to InOut. If endpoint4 is a
file endpoint what gets returned to the producer, i.e. the file endpoint
only supports InOnly. Would it be the response from endpoint3?

Thanks
Joe



--
View this message in context: http://camel.465427.n5.nabble.com/MEP-Query-tp5725428p5725476.html
Sent from the Camel - Users mailing list archive at Nabble.com.

Re: MEP Query

Posted by Claus Ibsen <cl...@gmail.com>.

On Sat, Jan 12, 2013 at 12:01 AM, gilboy <jo...@gmail.com> wrote:
> Hi
>
> Assume I have the following route:
>
> *from(endpoint1).to(endpoint2).to(endpoint3).to(endpoint4)
> *
> What dictates the MEP on the exchange. Is it the consumer for endpoint1
> since it creates the exchange?
>

Yes its the consumer which initially create the exchange and sets its MEP

> Or can the MEP change throughout the route, e.g. could the producer for
> endpoint3 change the MEP?
>

Yes the MEP can be changed at any point.
Though there is no producer which will change it.

Instead there is an EIP for that where you can change it during routing
http://camel.apache.org/request-reply.html

Notice there is a difference between using <setExchangePattern> and
<to ... pattern="xxx"/>

The former changes the MEP on the Exchange from this point forward.
The latter sets the MEP temporary when sending the exchange to the
given endpoint,
and restores the MEP afterwards. This is also documented in the
javadoc of the DSL.



> Thanks
> Joe
>
>
>
> --
> View this message in context: http://camel.465427.n5.nabble.com/MEP-Query-tp5725428.html
> Sent from the Camel - Users mailing list archive at Nabble.com.



-- 
Claus Ibsen
-----------------
Red Hat, Inc.
FuseSource is now part of Red Hat
Email: cibsen@redhat.com
Web: http://fusesource.com
Twitter: davsclaus
Blog: http://davsclaus.com
Author of Camel in Action: http://www.manning.com/ibsen