• 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
  • Liutauras Vilda
  • Tim Cooke
  • Jeanne Boyarsky
  • Paul Clapham
Sheriffs:
  • Devaka Cooray
  • Ron McLeod
  • paul wheaton
Saloon Keepers:
  • Tim Moores
  • Piet Souris
  • Tim Holloway
  • Stephan van Hulst
  • Carey Brown
Bartenders:
  • Al Hobbs
  • Frits Walraven
  • Scott Selikoff

EJB Server crash.

 
Ranch Hand
Posts: 79
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
28. Which are guaranteed by EJB 2.0?

A) Server crashes will be transparent to entity bean clients.
B) Server crashes will be transparent to stateless session bean clients.

The correct answer is A, any one coule give me explanation.
Thanks a lot.

Hai
 
Ranch Hand
Posts: 379
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator

Originally posted by Hai Lin:
28. Which are guaranteed by EJB 2.0?

A) Server crashes will be transparent to entity bean clients.
B) Server crashes will be transparent to stateless session bean clients.

The correct answer is A, any one coule give me explanation.
Thanks a lot.

Hai



That one troubled me also. The bottom line is that following the specs, entity beans (pls note: not entity bean instances) will survive a container crash, because entity bean are a 'logical' representation of the underlying persistence storage (read db) and if your container crashes, your data don't, and because entity bean are on OO view of your data, they survive either.
 
Switching from electric heat to a rocket mass heater reduces your carbon footprint as much as parking 7 cars. Tiny ad:
the value of filler advertising in 2021
https://coderanch.com/t/730886/filler-advertising
reply
    Bookmark Topic Watch Topic
  • New Topic