ALLInterview.com :: Home Page KalAajKal.com
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
info       Did you received any Funny E-Mails from your Friends and like to share with rest of our friends? Yeah!! you can post that stuff   HERE
Google
 
Categories >> Software >> Java-Related >> Java-J2EE >> EJB
 
 
 
Question 
what s the difference b/w EJB 2.0 and EJB 3.0 technically
 Question Submitted By :: Uma
I also faced this Question!!     Rank Answer Posted By  
 
Answer
 
EJB 2.0 are very complex, difficult to learn/use. Uses 
methods 
like "ejbPassivate", "ejbActivate", "ejbLoad", "ejbStore". 
Needs a deployment descriptor. 

In EJB 3.0 methods 
like "ejbPassivate", "ejbActivate", "ejbLoad", "ejbStore" 
are removed. Annotations are provided. In EJB 3.0, we donot 
need deployment descriptor. POJO(Plain old java object) are 
introduced. For defining any relationship 1:1, 1:N, N:1, 
M:N we have annitations.
 
0
Nidhi Aggarwal
 
View All Answers
 
 
 
 
 
   
Copyright Policy  |  Terms of Service  |  Help  |  Site Map 1  |  Articles  |  Site Map  |   Site Map  |  Contact Us |   interview questions urls   External Links 
   
Copyright © 2007  ALLInterview.com.  All Rights Reserved.

ALLInterview.com   ::  Forum9.com   ::  KalAajKal.com