SEAM2.0.0.GA
JBOSS4.2.1.GA

I'm currently using multiple SMPC's (for multiple DB's) that are configured in 
the components.xml.  Also using flushMode=MANUAL for @Begin method to ensure 
that transactions are atomic (i.e. no premature updates before conversation 
ends).  Seems to be working ok so far!

I'm trying to understand the impact of the below statement from the ref pdf.  
It sounds like Seam is violating the EJB3 spec in this regard.  This part is 
what I'm concerned about:
anonymous wrote : 
  | However as the Seammanaged persistence context is propagated to any 
component within the conversation, it will be propagated to
  | methods marked REQUIRES_NEW.

When a method is marked REQUIRES_NEW, afaik, the current transaction is 
suspended until the method marked REQUIRES_NEW is completed.  REQUIRES_NEW 
indicates that the method should always be executed inside a new transaction 
context.

So I'm assuming in this case an exception would be thrown if you use SMPC and 
REQUIRES_NEW in case a transaction would be propagated.  I tried it from a JSF 
getter method call to a method marked REQUIRES_NEW in a SFSB and there are no 
issues (but in that case apparently there is no transaction propagation)...

anonymous wrote : If you are using EJB3 and mark your class or method 
@TransactionAttribute(REQUIRES_NEW) then the transaction
  | and persistence context shouldn't be propagated to method calls on this 
object. However as the Seammanaged
  | persistence context is propagated to any component within the conversation, 
it will be propagated to
  | methods marked REQUIRES_NEW. Therefore, if you mark a method REQUIRES_NEW 
then you should access the entity
  | manager using @PersistenceContext.

--pg. 116 of JBoss Seam 2.0.0.GA ref pdf

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