Interceptor Alternative / SpEL usage

[BobbyF]

I was using interceptor (SI 1.0.4) to retrieve id from headers and set it as object ID in my application's processing. Using SI 2.0, I am looking to explore SpEL expression for this purpose instead of writing an interceptor. Is this doable? Is there any other alternative?

Thanks in advance.

[Mark Fisher]

Sure, you can use an annotation on your method parameter:

public void process(Foo payload, @Headers("bar") String s) {...}

Or... you can just use SpEL within the configuration:

<service-activator input-channel="in" expression="@myProcessor.process(payload, headers.bar)"/>

Does either work for your case?

[BobbyF]

Worked just fine. Thank you!

[Mark Fisher]

Cool. Out of curiosity, which of the 2 techniques did you choose?

[BobbyF]

I chose annotation over SpEL just simply because I am already already in the code transforming object. That seemed simple, straight forward and no extra steps.

Thank you!

PS: Great presentation on MDA. Thank you, one more time.

[Mark Fisher]

Ha. Thanks for attending!