jdo « Development « JPA Q&A





1. Hibernate vs JPA vs JDO - pros and cons of each?    stackoverflow.com

I'm familiar with ORM as a concept, and I've even used nHibernate several years ago for a .NET project; however, I haven't kept up with the topic of ORM in Java ...

2. JDO integration with hibernate    stackoverflow.com

in JPA, to use hibernate, the only thing need to do is moodify persitence.xml and add in hibernate configuration. May i know with JDO, can just by modifying jdoconfig.xml, able to ...

3. Whats the difference between JPA and JDO specifications?    stackoverflow.com

I have been using Hibernate ORM, which is an implementation of the JPA specification to manage relational data. I have also heard of the JDO specification that ...

4. Difference between JPA and JDO?    stackoverflow.com

want to develop my project on Google App Engine .I want to use google big table as database. For the database I have two options JPA and JDO. Will you guys ...

5. What does setting SubclassFetchMode (Kodo OpenJPA) actually do?    stackoverflow.com

What does setting SubClassFetchMode e.g. to EAGER_PARALLEL actually do? Why would one want a subclass to have a different FetchMode? The implementation spec for KODO and OpenJPA is notoriously bad and I ...

6. What's the "low risk" choice between JDO or JPA?    stackoverflow.com

Do not close this as a duplicate of other questions because I'm not asking the same thing. They're also about a year old. That said, see these links: http://db.apache.org/jdo/jdo_v_jpa.html

7. JAVA - modernizing data interaction against legacy system    stackoverflow.com

I would very much like to upgrade a legacy system currently using JSP and a home-grown web framework that is almost 10 years old. The web system (data entry and ...

8. Hibernate or JDO?    coderanch.com

4) In my opinion, it really doesn't matter whether Hibernate becomes a standard. The important thing is that it works and is an option among the variety of persistence framework out there. And the LGPL license is flexible. It might be prudent to create a layer that minimizes dependencies on a particular persistence product; so that your app is portable. XDoclet ...

9. Hibernate and JDO    coderanch.com





10. Hibernate vs JDO    coderanch.com

I am new in this area. A few months ago I started looking for a new job. That is when I heard Object Mapping stuff. Then I heard Hibernate and JDO. During several interviews, I was asked about these stuff. Hibernate or JDO ? Which one is more popular ? I mean which skill is more marketable ? If a company ...

11. Hibernate or JDO Which is Best One    coderanch.com

Oh, and if you're not afraid of "lock-in" to Hibernate, it's certainly more fully featured right now. Things might level a bit when JDO 2.0 comes out. Having said that, the JDO products offer more or less the same functionality that Hibernate does -- they've just had to do it outside the JDO spec. I know there's a bunch of JDO ...

12. War Hibernate- JDO    coderanch.com

14. Hibernate VS JDO- - - which one?    coderanch.com

Originally posted by Yan Lee: Hi, I am looking to use either Hibernate or JDO in my J2EE application. Since I am new to both, I am unable to decide on either one. Please advise: [1] Is one bettter than the other? Why? [2] If JDO is better which implementation is advisable? [3] How do they perform in production environment in ...

15. JPA and JDO    coderanch.com

We cover JDO in the history section, and how it was one of the threads that led to the JPA specification. JPA is given a chapter where we evaluate it against the template in chapter four that we extracted from the discussion of persistence issues in the first three chapters. Ok then, Geoff

16. Persistance using hibernate,JPA,JDO..etc - Need Suggestions.    coderanch.com

Hi, I have a requirement in my project where once the user logs in, the database is queried and some information related to the user is retrieved and stored in JVM.So the number of hits to the database is decreased. The requirement in detail : This is Simple Cart-Shopping application. There is a UI which displays various products which one can ...





17. Do you think JPA will achieve what JDO could not?    coderanch.com

JPA is being widely used, and with Hibernate as a persistence provider, and the depth with which JPA is anchored in the EJB3 spec, I think it has legs. JPA 2.0 looks great as well. It has a future. It's as strong a bet as anything else out there, if not a bit stronger. -Cameron McKenzie

18. hibernate & jdo!?    forum.hibernate.org

19. Hibernate to go JDO ??    forum.hibernate.org

Hi, first I think it's great news that Hibernate ist affliliating and working together with JBoss Group now. It's been announced here and from the JBoss team that hibernate will be the base of JBoss 4's new CMP engine and also serve as the AOP POJO persistence solution. As for the Hibernate-based POJO persistence solution in JBoss or standalone, does this ...

20. Hibernate and JDO    forum.hibernate.org

21. Why use Hibernate instead of JDO?    forum.hibernate.org

I started to learn Hibernate, but switched to JDO in learning. Now I feel that JDO is not very well designed: JDO doesn't seem easy to use and it lacks important features. Is there a list of the pros and cons of Hibernate vs. JDO? Or can you tell me the pros and cons? Why would Hibernate be used instead of ...

22. JDO on Hibernate?    forum.hibernate.org

OK, so it might be reasonable to assume that when there is a JDO 2 that is sufficiently mature, then there will be a migration path for Hibernate developers to move over to JDO and still reuse the mappings that they invested in for Hibernate? I am serious about a migration path here because I truly believe that JDO (or something ...

23. Is hibernate similar to JDO    forum.hibernate.org

Hi, Allow me to ask some silly question please, recently , I come across JDO (Java Data Object) specification, it appears to me that in general JDO and hibernate are rather similar , although I am not very sure about it functionality and persitence concept as both are trying to make the life of java developer much easier , by trying ...

24. Hiberate vs. A Particular JDO Implementation    forum.hibernate.org

Gavin et al., I've corresponded with the author of a well-written JDO implementation, who had some complementary things to say about Hibernate. The following points were made , however, is favour of "My JDO" and against Hibernate: ------------------------------------------- "My JDO" has a much more flexible data loading engine than Hibernate. You can define load policies that completely control what data is ...

25. JDO or Hibernate    forum.hibernate.org

JDO or Hibernate We are in a planning phase for a project. In the past we have used JDBC, EJB and specific components for Data Access Layer. We where evaluating different ways to be Database Independent as well as hidding the Object Relational Mapping. The final contestent's are JDO's and Hibernate . Can any one help us decide on what to ...

26. Future Hibernate/JDO Implementations    forum.hibernate.org

Greetings, Since attending Gavin's BOF session at JavaOne and discovering that there is currently no planned JDO implementations for Hibernate, I was wondering if there were any independent Hibernate/JDO implementations in the works. Have you or anyone you know begun work on such a project? As members of the Hibernate community, do you feel a Hibernate/JDO implementation would be useful for ...

27. JDO to Hibernate conversion issue    forum.hibernate.org

28. JDO vs. Hiberante    forum.hibernate.org

29. JDO or Hibernate    forum.hibernate.org

30. Hibernate and JDO    forum.hibernate.org

I've heard from a couple of sources that Hibernate supports or will support JDO, but I can't find anything about this (either confirming or refuting it) anywhere on hibernate.org. Is this something that Hibernate has or is actively working towards? I'm asking because I currently use a JDO2 implementation I'm looking to swap out. Obviously it'd be a lot easier to ...

31. Migration from JDO    forum.hibernate.org

I am currently using Kodo's JDO. I would like to migrate from JDO to Hibernate. Here are my questions on this: 1) Is there a "magic" tool that would migrate from JDO to Hibernate? 2) Is there a documented procedure that would help in doing this migration? 3) Can JDO and Hibernate co-exist in an application, without requring me to migrate ...