This week's book giveaway is in the Kotlin forum.
We're giving away four copies of Kotlin in Action and have Dmitry Jemerov & Svetlana Isakova on-line!
See this thread for details.
Win a copy of Kotlin in Action this week in the Kotlin forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic

"J2EE knowledge" means automatically "EJB knowledge" ?  RSS feed

 
Catalin Mihalache
Greenhorn
Posts: 16
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hello,

I know that EJB is the toppest Java technology and I really try to understand it (based on my Hibernate experience, mainly)

I have a dispute with some of my "friends" regarding if "J2EE knowledge" means automatically "EJB knowledge", too. I know that EJB is part of J2EE but can you say that you are an experimented J2EE programmer (based on Servlets, JSP, JSF, JSTL, XML-XSLT, JAX-RPC knowledges) even if you know about EJB only that is a relational mapping tool (somehow similar to Hibernate) ?

Best regrads.
 
Pradeep bhatt
Ranch Hand
Posts: 8933
Firefox Browser Java Spring
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I consider J2EE programmers to know EJB. Others opinion may vary.
 
Catalin Mihalache
Greenhorn
Posts: 16
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
sorry, but I didn't said "J2EE programmer", just "J2EE knowledge"!
 
Severin Stoeckli
Ranch Hand
Posts: 62
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hi Catalinescu,

In my opinion, you can be a "experimented J2EE Programmer" (whatever experimented in details means ;-) even if you don't know EJB. Your application needs may fit exactly into the J2EE technologies without EJB's. I, for example, have a few servlet / JSP experience, no experience in Webservices and a lot of experience with EJB's.

However, EJB is not only a relational mapping tool. EJB is much more, and in our project we don't use this part of the EJB technology - we don't use Entity Beans. The main adventages of EJB's are (maybe this is an incomplete list - other opinions are welcome):

- Transactionservices
- Securityservices
- Single-threading model for the Bean Provider (=Programmer)
- Portability
- Messaging integration
- Timer services (singe EJB 2.1)
- relation mapping tool ;-)

Severin
 
somkiat puisungnoen
Ranch Hand
Posts: 1312
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
In my opinion,

If you have knowlegde in J2EE Techology , you should have standard knowlegde about concept of n-tier/multi-tier, concept of EJB ...
 
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!