Adam Bien's Weblog

« JShot - Useful Scree... | Main | An award-winning... »
Sunday Aug 17, 2008

Absolute Beginner EJB 3 / JPA Series - the Essential Bootstraps And Background Information

The EJB 3 / JPA series are really popular (several thousands views). I was asked to provide an overview, so here are the posts so far:

  1. EJB 3 plain intro 
  2. Dependency Injection intro
  3. JPA intro
  4. Interception / "AOP" intro

I answered some frequently asked questions during the the inception phase of my Java EE 5 projects in my blog as well:

  1. So if you have EJB 3, are "Plain Old Web Containers" still viable?
  2. What happens, in case EJB 3 turn out to be not powerful enough?
  3. Are POJOs lot faster, comparing them to EJB 3?
  4. What's about the memory consumption?
  5. Are EJB 3 threadsafe? Do they run well on multi-core, multi-CPU machines?
  6. Are EJB 3 actually lightweight or heavyweight?
  7. How fast is the deployment of several hundred JPA-Entities and Session Beans?
  8. Monolithic Or Modular?
  9. Integration Of "Legacy" POJOs - why not to inject a DefaultTableModel into an EJB?
...and why I like them

Posted at 02:57PM Aug 17, 2008 by Adam Bien in Java EE 5 Architectures And Idioms  |  Kommentare[0]


[This entry is based on / extends my books: Enterprise Architekturen, Leitfaden fuer effiziente Software-Entwicklung and: Java EE 5 Architekturen, Patterns und Idiome]

 Subscribe in a reader

Kommentare:

Senden Sie einen Kommentar:
  • HTML Syntax: Ausgeschaltet
About,RSS / Atom

Number of posts: 467
Number of comments: 1182

About me: www.adam-bien.com
JavaONE 2008 Interview
My Recent Books
My latest books: Enterprise Architekturen

and:
Java EE 5 Architekturen, Patterns und Idiome

I also wrote a chapter about Java EE 5 in SOA context for the SOA-Expertenwissen book.


Adverts
Search

Links
greenfire.dev.java.net
...the last 150 posts
Netbeans 6.5: Nice "Hidden" Feature In The SQL Explorer
Your Architecture Starts To Be Sub-Optimal If:
Save The Date, December 4th 2008 - And Wait For Java FX 1.0
Top Eight, Non Java, Netbeans 6.5 Features
Six Swing Lies:
Swing Is Especially Effective If:
Netbeans 6.5 Is Out - And I'm Not Very Excited [RC 2 was too good...]
Glassfish v3 Prelude Ready For Production?
Java EE 5/6 in German Museum
Eclipse RCP vs. Netbeans RCP - and what really counts
EJB 3 - From Legacy To Secret Weapon
Danzig Band and City, Netbeans 6.5 rc1 on Vista, Xtreme Makeover, Restful and Beeing Doomed to Present the Basics
2 NB Dreamers, 2 Sun Engineers, One Car - or Testing Netbeans 6.5rc1 EE in Real Time During Presentation
Two Days With Netbeans 6.5rc1 and Glassfish v2ur2 in Production - And No Risk No Fun at Netbeans Days
The JDD Conference - "PolandONE" :-) is over - From Scala over Spy Testing To Distributed Caches
Glassfish v3 Prelude b28 - The EJB 3.1 Bloatware?
Productive Java EE 6 - Rethinking Best Practices, Planned For San Jose, Takes Place in Krakow (JDD) ...and Netbeans Days, or Poland the "Java Land"?
My Top 3 "No XML" Frameworks
Java EE 6 And Rethinking - JUG HH Afterglow
How Big Is Actually The EJB 3.1 Container In Glassfish v3? - Because EJBs are Hevyweight, It Has to be Huge...
Missing ctrl+space Autocompletion in ...Word
EJB 3.X ...the Consultants Killer
Free Session: Productive Java EE 6 - Rethinking The Patterns @JUG in Hamburg, Cluster One
Diffing Files In Netbeans 6.5 - In Favourites, Without projects
First Day With UMLKit On Netbeans 6.5
Woodstock Runs Better On Chrome, Than On Firefox 3.0
New UMLKit Available For Netbeans 6.5 - First Tests - Reverse Engineering Of EJB 3 Rocks
Silent Death Of The Classic Marker Interface Pattern - Is java.io.Serializable Legacy?
How Big Is The Entire EJB 3.1 API Needed To Compile Your Session Beans?
Productive Java EE Workshop - And Already 31 Registered Developers
Is SpringSource Working On EJB 3.1 Container?
EJB3 - annotations vs xml - And Probability Driven Decision, Best Practices
Do JPA Entities Have To Be java.io.Serializable?
Remote (IIOP) EJB 3 / JPA 1.0, No Think Time, 100 Virtual Users, 4-Way Machine, Glassfish v2u2 Clustered - ...and What is The Performance?
Netbeans 6.5 beta - Useful Productivity Enhancements For Java EE, Missing Some Features As Well
EJB 3 - Dead Or Alive ...very alive, See Quickvote Results
An award-winning heating hack - GreenFire Interview @Ericsson Mobilityworld
Absolute Beginner EJB 3 / JPA Series - the Essential Bootstraps And Background Information
JShot - Useful Screen Capture Utility - Works With Java6u10, WebStart, Swing and Nimbus
TimeLines, KeyFrames, Tweening - Useful JavaFX Screencast For Beginners
Netbeans 6.5 Beta - And A Really Useful Feature
The Irony Of Separation Of Concerns, Best Practices and Anti Patterns in Java EE
How To Kill A SOA Project - It Started With A Post ...Looking Forward To The Talk At W-JAX
Interceptors (EJB 3) For Absolute Beginners - Or Pragmatic AOP in 2 Minutes (without XML :-))
First Night With JavaFX and Netbeans - First Impression, Some Smoke
Useful Explanation: "iBATIS, Hibernate, and JPA: Which is right for you?", Strange Conclusion
Pros and Cons of Modularization, Plugin Architectures and Other Techniques
Netbeans 6.5m1 - accidentally in production for two and half weeks...
"Designing The Boundary - Rich UI Meets Efficient Java EE" Workshop in Zurich
Java Network Browser - Useful, Nice and WebStartable Swing Application
Interested in Java 6, Java EE 5, EJB 3, JPA, High Scalability, Netbeans, Glassfish v2, later v3 (no xml :-)) Job in Hamburg?
"No XML" - Dependency Injection (EJB 3) For Absolute Beginners, or Is Possible To Inject With Less Code / XML?
Glassfish v2ur2: Potential Data Corruption in Mixed JPA / DAO Usage - and The Solution
Sun Moves In Strange Ways - Or If I Were Sun
Workshop in Zurich ...and San Jose: Designing The Boundary - Rich UI Meets Efficient Java EE Backend
I Was Interviewed During JavaONE 2008 - The Video Is Available Now From ...java.sun.com
First Week With Netbeans 6.5M1 - Some Smoke - But Interesting Directions
VisualVM - and So Part of Netbeans, Is Part of JDK 1.6 Update 7 Now
Oracle Fusion Middleware Strategy Is Very Interesting For ...Glassfish
EJB 3 Persistence (JPA) For Absolute Beginners - Or Create Read Update Delete (CRUD) in 2 Minutes And Two (library) Jars
Web 3.5 Arrival or Swing Apps Rocks With Java 6 Update 10 - an 3D, Flickr, WebStart App
Java FX - Shapes, Binding, Animation Screencast By Josh Marinacci
The Synergy Between Operations And Development, Or Why Glassfish Takes Off
OSGI Was Supported By Sun Long Before J2EE...
Netbeans 6.1 Editor - One Of My Favorite Shortcuts / "Hidden" Functionalities
EJB 3 (@Session) For Absolute Beginners - 3 Minutes Bootstrap, 5 Steps
GlassFish & MySQL Unlimited - I Miss One Feature
You Don't Need To Think About Transactions If:
A Beautiful Java Book - Something For Your Lunch Break
Is EJB 3 The Solution For The "Multicore Crisis"? (@Stateless and @Stateful)
Embedding Glassfish V3 in Unit Test - Two Jars, Three Lines Of Code And Five Seconds Start With Deployment
To JSF Or Not To JSF ...This Is The Question - or Why vi is Not Enough
How Fast Is The Build And Deployment Of about 660 JPA Entities And 50 Session Beans On Glassfish v2 And Netbeans 6.1?
How To Start With Mercurial in 3 Minutes - or How Big Is The Netbeans Source Repo?
Would Someone Consider To Use SWT (or another native widget library) Again These Days For Portable Platforms / Applications?
Glassfish Could Become The Killer Portal Server - Project WebSynergy
First Indicators of Overengineering in Your Project
JBoss 5.0 will come ...in next several quarters
Web 3.5 Arrival or Applets Rocks With Java 6 Update 10 - an 3D, AJAX, Applet Hybrid
End Of The Green Bar Paradise? The Overestimation Of Unit Testing In Distributing Computing
What Happens, If You Start With EJB 3.X, And They Will Not Make It?
Heavyweight EJBs, Lightweight POJOs, Ultralightweight EJB 3.X, and the Demise of POJOs
Why I Like EJB 3.0 And Really Like EJB 3.1, Or EJB 3 Killed The XML
The Ultimate Interview Question For (not only) Java Developers
How To Get Rid Of: com.sun.messaging.jmq.io.Packet cannot be cast to com.sun.messaging.jms.ra.DirectPacket in Glassfish V2.X
The Last Tiny Thing To Do Before Applets Take Off Again
Java 6 SE update 10 and the Great Java Cache Viewer - The Dream Team
The Java Pen, Executable Manual And Waiting For the Java SDK
Java EE Architectures, Patterns and Hacking, ...or Code Driven Workshop in Munich
Quality Assurance Driven Development - And The Resulting Damage...
How To Kill A SOA Project - Or What Questions To Ask First Your Client
Sun xVM Virtual Box - the Killer Virtualization Tool? Second Smoke Test with Ubuntu
It's Not Flash -It's An Video Streaming Applet - With Java SE 6u10 Effect
Google Trends - Netbeans 6.1 More Popular Than Eclipse? What's about IntelliJ?- try it out...
Netbeans 6.1 Support For Ant File Editing - One Thing What I Miss
The Relation Between Java FX (Script) And Swing - Are You Still Concerned?
Some Ultimate java.net Projects
JUG HH Rocks, Java EE 5 Hacking - Rethinking Best Practices, Discounts On Java ONE Top Selling Books and the PI mug
Generic EJB 3 CRUD, DTOs and Lost Updates with Optimistic Locks and JPA
What Is Blogging? (The Shortest And Most Precise Answer I Ever Heard)
my.netbeans.org
Visitors
Locations of visitors to this page
Reads/Day from javablogs.com
Reads/Day
License
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 2.0 License.