[jboss-user] [JBoss Seam] - simulate a multi-page transaction or not ?

[codelion]

In Yuan & Heute's book version 12/6/2006 in section 9.4 "Simulate a Multi-page Transaction" ...

method confirm() is annotated @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED) and contains a call em.flush().

Per javax.persistence.EntityManager though for method flush() it @throws TransactionRequiredException if there is no transaction.

You see that, TransactionAttributeType.NOT_SUPPORTED would trigger that @throws TransactionRequiredException if there is no transaction, right?

Is section 9.4 speculation (as of 12/6/2006) or is anyone really using it?  Any insights?

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