error handler

[Marco Westermann]

Hi, just a little understanding question. If I have a route
from("file:///data/input/)
    .to("direct:transform")
    .to("direct:enrich")
    .to("direct:transform)
    .to("file:///data/output")

what message would 
deadLetterChannel("direct:failedFiles").useOriginalMessage() handle, 
when an error occur within one of the direct endpoints and how would the 
scope of the error handler affect that behaviour?

Thank you Marco