Replying to my own question.
I can subclass AbstractWriteAttributeHandler.applyUpdateToRuntime() to
verify the attribute alternatives for the resource (e.g.
HttpManagementWriteAttributeHandler).
The only difference is that this occurs at RUNTIME step, not at VERIFY.
Is it a big difference? (in case of an alternative already defined, I
flag the context as rollback only anyway).
thanks to tomaz for pointing this out
jeff
--
Jeff Mesnil
JBoss, a division of Red Hat
http://jmesnil.net/