part3 – Adam Bien
summary
Claims EJB3 uses annotated POJOs, no XML, just annotations, with dependency injection by interface and the option to swap implementations or use Spring; the full API is ~40 KB with about ten annotations and the container can be ~300 KB container; measured throughput on a notebook is roughly 2000–2500 req/s (minor difference vs. plain POJO). Jersey/JAX‑RS exposes clean REST endpoints like /resources/customers with start/max query params and returns JSON or XML.
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chapters (8)
- 0:00EJB 3 and XML debates
- 1:12Deploying web services with EJB 3
- 2:15EJB 3 JAR with annotated POJOs
- 4:27Injecting EJB 3 beans
- 5:30EJB 3 deployment productivity
- 6:58EJB 2 vs EJB 3 performance
- 8:01Testing RESTful services with Jersey
- 9:30RESTful URL mapping to Java
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