part2 – Adam Bien

on YouTube ↗10m

" summary

Argues that EJB3 makes Java web apps simpler by handling EntityManager and transactions in-container, reducing glue code; demonstrates embeddable EJB container that boots in three lines for unit tests and deploy EJBs inside WAR for fast iterative deploys. Highlights Singleton and @Startup ordering, @Asynchronous with Future and cancel for long-running tasks, standardized JNDI names (java:global...), JSR-311 REST support, and practical GlassFish-based examples including CORBA IOR integration to talk to C++ embedded clients.

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