• 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
  • Tim Cooke
  • Devaka Cooray
  • Ron McLeod
  • Jeanne Boyarsky
Sheriffs:
  • Liutauras Vilda
  • paul wheaton
  • Junilu Lacar
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Piet Souris
  • Carey Brown
  • Tim Holloway
Bartenders:
  • Martijn Verburg
  • Frits Walraven
  • Himai Minh

Transaction attributes

 
Ranch Hand
Posts: 64
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I came across this question in a mock exam.
Which of the following EJB Transaction Attributes ensures that the method call always takes place in a transaction, either client started, or container started? Select 2 correct Choices.
1.TX_MANDATORY

2.TX_REQUIRED
3.TX_REQUIRES_NEW
Answer given: 2,3.
Why is not 1 a valid option.
 
Ranch Hand
Posts: 390
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
TX_REQUIRED and TX_REQUIRES_NEW will always run in a transaction. TX_REQUIRED will start a new transaction where non exists and TX_REQUIRES_NEW will always run in a new transaction irrespective of whether one exists or not but TX_MANDATORY will throw an exception if called without an existing transaction.
 
Evacuate the building! Here, take this tiny ad with you:
the value of filler advertising in 2021
https://coderanch.com/t/730886/filler-advertising
reply
    Bookmark Topic Watch Topic
  • New Topic