• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

Spec Chapter 12 -- BMP Entity Bean, no need for SCBCD?

 
Ranch Hand
Posts: 79
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi Guys,
As for spec Chapter 12, it's talking about BMP Entity Bean, I got 3 confusions:
1) BMP is not required for SCBCD, is it? if not requried, then we can skip Chapter 12, and why Chapter 12 exists?

2) We have CMP/BMP Entity Bean, CMT/BMT Entity Bean, but we only have CMT/BMT Session Bean, right? (Do we have CMP/BMP Session Bean?)

3) Do we have CMP or BMP or CMT or BMT MessageDriven Bean?

Thanks a lot in advace.

Hai
[ July 12, 2004: Message edited by: Hai Lin ]
 
Hai Lin
Ranch Hand
Posts: 79
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
any advice?

Thanks.

Hai
 
Ranch Hand
Posts: 87
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

1) BMP is not required for SCBCD, is it? if not requried, then we can skip Chapter 12, and why Chapter 12 exists?



I don't think BMP contract is on the exam. There are things you do need to know about BMP (tx won't propagate into BMP bean and that sort of things). But the spec was not written for people preparing to take the exam. The spec has to cover everything, even things not in the exam.

2) We have CMP/BMP Entity Bean, CMT/BMT Entity Bean, but we only have CMT/BMT Session Bean, right? (Do we have CMP/BMP Session Bean?)



We DO NOT have BMT Entity Beans.
Persistance is a concept only applicable to Entity Beans. In fact, that's the main diff between session and entity beans: entity beans are persistent! So we DO NOT have CMP/BMP Session beans.

3) Do we have CMP or BMP or CMT or BMT MessageDriven Bean?[/B]



The only persistent beans are Entity Beans, they are the only ones with CMP/BMP. Message driven Beans can be both CMT or BMT (just like session beans).
 
Hai Lin
Ranch Hand
Posts: 79
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Lionel,
Thanks a lot to clarify my confusions. You answer are straightforward and clear.

Hai
 
Ranch Hand
Posts: 94
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi Lin,
have a look on this.. https://coderanch.com/t/157584/java-EJB-SCBCD/certification/Things-you-do-NOT-know
Hope it will help you
 
Lionel Orellana
Ranch Hand
Posts: 87
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
No worries Hai. It's good for me too trying to explain things ..
 
reply
    Bookmark Topic Watch Topic
  • New Topic