Presentation: Transaction Management Strategies in Mission Critical Applications
Watch Transaction Management Strategies in Mission Critical Applications (89 min)
The presentation begins with Juergen explaining some transaction management myths:
- A serious, mission-critical enterprise application requires XA transactions.
- Not true: Many enterprise application do not require XA transactions at all.
- Proper transactional O/R Mapping integration requires XA / JTA.
- Not true: O/R Mappers usually just operate on a database connection and add some additional cache housekeeping, which does not require XA.
- For combining JDBC and JMS access, XA transactions are a necessity.
- Not true: Many enterprise applications use JMS with local transactions or even with plain acks.
- And the biggest myth of it all: Proper transaction management requires EJB.
- While in reality, EJB just offers a baked-in style for transaction demarcation. The hard work is done by the underlying transaction manager...Or, even broader: Proper transaction management requires a full J2EE server.
- What about distributed transaction propagation?
- not actually a responsibility of the core transaction manager...rather context passing in the remoting protocol EJB containers (and J2EE servers) build this on top of RMI, simply piggybacking the XID there
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