[Jboss-dev-forums] [Design of JBoss Integration] - Re: Proposed Foundation for JBI

[<ad...@jb...>]

"tom...@jb..." wrote : 
  | [transactions]
  | seems straight forward on how i would handle that.  sending messages to the NMR and receiving messages from the NMS should be transactional, just as with JMS.  but scanning the sequence diagrams in the spec i'm a bit afraid.  i see different threads for beginning and committing transactions :-( this definitely requires some more investigation
  | 

This does not look like JMS semantics to me.

In JMS, it is the send that is transactional. i.e. until the commit, the receiver does not
get the message.

In JBI, the sender/initiator is handing over control of the transaction to the receiver/servicer
with what looks like a protocol to ensure that both are not in control at the same time.
It does say, that it is only anticpated to be used locally (no DTM for now...).

So JBI is performing a fundamentally synchronous protocol even if it done across
threads using "lock step".

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