real_world_java_ee_patterns.pdf

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Real World Java EE Patterns

- Rethinking Best Practices

blog.adam-bien.com

Introduction

Expert Group Member (jcp.org) of Java EE 6, EJB 3.1, Time and Date and JPA 2.0

Java Champion,Netbeans Dream Team Member, (JavaONE) speaker, freelancer,

consultant and author: 7 German books + working on “Real

World Java EE

Patterns– Rethinking Best Practices”

http://press.adam-bien.com

Trainer, Developer and Architect (since JDK 1.0)

Project owner/committer: greenfire.dev.java.net, p4j5.dev.java.net,

fishfarm.dev.java.net

blog.adam-bien.com

Based on:

blog.adam-bien.com

1. EJBs Are Heavyweight

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EJBs Are Heavyweight

Configuration is mainly gone, because of conventions...

(there was no XML in my last projects except

persistence.xml)

EJB 3 are just annotated Java classes (if you love XML

you can even use just Deployment Descriptors instead of

annotation)

Container “services” like transactions, security,

concurrency or state are implemented with aspects (often

realized with dynamic proxies)

blog.adam-bien.com