This week's book giveaway is in the Kotlin forum.
We're giving away four copies of Kotlin for Android App Development and have Peter Sommerhoff on-line!
See this thread for details.
Win a copy of Kotlin for Android App Development this week in the Kotlin forum!
  • 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 all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Liutauras Vilda
  • Devaka Cooray
  • Jeanne Boyarsky
  • Bear Bibeault
Sheriffs:
  • Junilu Lacar
  • Paul Clapham
  • Knute Snortum
Saloon Keepers:
  • Ron McLeod
  • Tim Moores
  • Stephan van Hulst
  • salvin francis
  • Carey Brown
Bartenders:
  • Tim Holloway
  • Frits Walraven
  • Ganesh Patekar

primary key  RSS feed

 
Ranch Hand
Posts: 64
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Mock exam question : With CMP, the primary key for an entity bean may be automatically generated by the container if the entity bean meets certain requirements. Which of the following is true.
Select 1 correct Choice.

A. In the deployment descriptor, the primary key class must be defined as a java.lang.Object. The primary key field must not specified.

B. In the home interface, the argument of the findByPrimaryKey method must be a java.lang.Object.

C. In the entity bean class, the return type of the ejbCreate method must be a java.lang.Object.
 
Ranch Hand
Posts: 143
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
A, B
Please refer to EJB Spec Pg204, 10.8.3. Please read the section. Below is an extract from that section.
The spec states that
"In this special case, the type of the argument of the findByPrimaryKey method must be declared as java.lang.Object. The Bean Provider must specify the primary key class in the deployment descriptor as of the type java.lang.Object."
 
Ranch Hand
Posts: 30
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
ejbCreate(..) returns primary key type so it should return java.lang.Object.
A, B, C
 
Those cherries would go best on cherry cheesecake. Don't put those cherries on this tiny ad:
Programmatically Create PDF Using Free Spire.PDF with Java
https://coderanch.com/wiki/703735/Programmatically-Create-PDF-Free-Spire
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!