Devoxx - Building Next-Generation Enterprise Applications in Java

Building Next-Generation Enterprise Applications in Javaa.k.a. Duke’s Duct Tape AdventuresBert Ertman (@BertErtman)Fellow at LuminisPaul Bakker (@pbakker)Sr. developer at Luminis Technologies

DISCLAIMER

The following is intended to outline ourgeneral product direction. It is intended forinformation purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.

Introduction Functional vs. What’s an enterprise application anyway? Non-functional 4

Non-functional system capabilities• Availability• Capacity• Extensibility• Flexibility• Manageability• Performance• Reliability• Scalability• Security• Testability 5

How to accomplish that?• Remoting • Fail-over• Dependency • Integration testing management • Asynchronous• Caching invocations• Web Services • Transactions• Messaging (JMS) • Security• Scheduling / timers • Singletons• Load-balancing • ... 6

Architecture Business rules/validations Domain objects UI rendering Data storage Transactions Client-side validation ConsistencyPresentation Navigation Business Data Data Logic Logic Logic Access Screen/workﬂow Object/relational mapping management Invoking Enterprise Information Systems 7

Let’s get started... So, what’s the typical example of an enterprise application? 8

That is probably... WRONG! 9

Remember this? 10

Our toolbox• Application Server - Glassfish v3.1 / JBoss AS 7• Database - MySQL• Build tool - Maven (ehhh...well)• Java IDE - ... 11

But wait... PET STORES SUCK! Hmm...let’s think of a better analogy... 12

#qotd “Java EE 6 is the DUCT TAPE of modern enterprise development” 13

Let’s visualize... Java EE 6 Java EE 6 14

Yep, it’s cool... 15

Run it by Google 16

Hell yeah :-) 17

Enterprise - revisited! 18

DEMO Code can be downloaded from:https://github.com/paulbakker/ducttape

Where is the pattern love? 20

Heavy-weight vs. Light-weight 21

EJB: Enterprise Java BabesEJB: Enterprise Java Babes #ftw

Downsides of Java EE?• KISS, DRY, and YAGNI –Instead of only talking about them you now have to prove them in practice• More bugs per # LOC ;-)• Small deployments –OH: “So they spent 3 months building this app and it’s ONLY a 100k WAR file?” 23

So... With Java EE 6 in winter, who needs Spring? it sucks anyway... 24

More info• Bert Ertman• Twitter: @BertErtman• E-mail: bert.ertman@luminis.eu• Paul Bakker• Twitter: @pbakker• E-mail: paul.bakker@luminis.eu 25

The End Happy coding! 26

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Devoxx - Building Next-Generation Enterprise Applications in Java

by ertmanb on Nov 14, 2011

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Devoxx - Building Next-Generation Enterprise Applications in Java — Presentation Transcript