wood burning stoves 2.0*
The moose likes Architect Certification (SCEA/OCMJEA) and the fly likes JDO & JPA Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login

Win a copy of Android Security Essentials Live Lessons this week in the Android forum!
JavaRanch » Java Forums » Certification » Architect Certification (SCEA/OCMJEA)
Bookmark "JDO & JPA" Watch "JDO & JPA" New topic


Naveen K Sinha

Joined: Mar 16, 2004
Posts: 12

I am confused between these two things.. JDO and JPA. Why two different framework for the same thing ? What level of understanding I need to have on JDO for the exam.

I already have read JPA. Do, I need to study JDO as well ? Or should I just remember the few differences like JPA is only for RDBMS, JDO supports many different databases; JDO more mature than JPA. ( I know only these two :-( )

Appreciate your help.


prathap venkata naga yelugula
Ranch Hand

Joined: Aug 13, 2008
Posts: 243
Hi .
Can you suggest me one good book for JPA.
Riyaz Enayath
Ranch Hand

Joined: Sep 01, 2009
Posts: 32
Hi Pratap,

Below are JPA resources:

(i) EJB 3.0 JPA Specification (JSR 220)

(ii) Part 5 on Java EE 5 Tutorial from Official website (http://java.sun.com/javaee/5/docs/tutorial/doc/bnbpy.html)

(iii) Part 7 on ejb-3 in action (Implementing domain models)

Hong Anderson
Ranch Hand

Joined: Jul 05, 2005
Posts: 1936
JDO has more flexibility than JPA. JDO supports any type of datastore whereas JPA is so narrowed and limited to RDBMS only.
JDO 2 also has more features than JPA1.


SCJA 1.0, SCJP 1.4, SCWCD 1.4, SCBCD 1.3, SCJP 5.0, SCEA 5, SCBCD 5; OCUP - Fundamental, Intermediate and Advanced; IBM Certified Solution Designer - OOAD, vUML 2; SpringSource Certified Spring Professional
Consider Paul's rocket mass heater.
subject: JDO & JPA
Similar Threads
Spring 3 and JDO (Java Data Objects)
Do you think JPA will achieve what JDO could not?
not enamored by JSF 1.1
is there any related between JDO and hibernate ?
SCEA Objective - 4.2