[jbpm-dev] [Design of JBoss jBPM] - Re: Multiple 1PC resources in enterprise

[tom.baeyens@jboss.com]

anonymous wrote : i would guess the whole purpose of an appserver is to take care of making a global transaction out of XA transactional resources, no ? even if we would use different DSs.
managing a global/distributed transaction is the app server's business indeed, except that (1) some databases such as HSQL and (correct me if I'm wrong) MySQL do not provide XA data sources and (2) the EJB timer service's support for 2PC relies on its underlying data source, which affects the EntitySchedulerService. JMS's 2PC support does not rely on the underlying data source's XA capability and therefore the JmsMessageService is unaffected.

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