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How to do return values with faces flows?

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Joined: 2013-11-15

Hello everybody,

the java ee 7 jsf tutorial - and also Ed Burns presentation slides - speak of "return values" that a flow can deliver. I tried hard, but I really did not find any hint how to do this. I don't mean outbound parameters which are given to input parameters of a nested flow - that works fine. I want to give values back from the sub flow to the caller flow. This would have the semantics of a "real" return value. I thought this has to be done by configuring the return node of the sub flow, but there is no appropriate configuration element in the faces-config.xml.
Actually I'm working with Mojarra 2.2.3.

Thanks for your help,