MQSeries.net :: View topic

Esa · Posted: Tue Jan 10, 2012 2:54 am Post subject:

Don't code what you can configure - a good design priciple which is more and more supported by Message Broker. Or actually it's what the whole product is about.

But do header nodes like MQHeader always force a (more or less deep) copy of the input root? Or are they smart enough to modify the header in situ when the input body parser can confirm the message to be fully parsed? (Modifying a header within InputRoot when the body has not been fully parsed may cause the modified header to be propagated to the input nodes catch terminal, which is not acceptable. Propagating a modified header to a TryCatch nodes catch terminal should be considered less inacceptable)

I haven't run any test on this, it's a bit difficult to figure out how to comfirm what is happening. So I decided to first try phishing up a somewhat authorized opinion by writing this hopefully discreetly irritating post.