File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
The moose likes EJB Certification (SCBCD/OCPJBCD) and the fly likes conversational state Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login
JavaRanch » Java Forums » Certification » EJB Certification (SCBCD/OCPJBCD)
Bookmark "conversational state" Watch "conversational state" New topic

conversational state

Michael Meyer

Joined: May 14, 2004
Posts: 4

I tried mock exam on and i was confused with one question

Question : - Which one of the following statements regarding a session bean's conversational state is true?

1. Stateless and stateful session beans both maintain conversational state.
2. An object reference to the java:comp/env JNDI context that is stored in session bean's conversational state is not perserved when the session bean is passivated.
3. The conversational state of a session bean with container-managed transaction demarcation is automatically rolled back to its initial state if a system exception is thrown by a business method.
4. A session bean's conversational state can hold an open socket connection.
5. Non-transient fields of a session bean's conversational state are lost when a session bean is passivated

Correct ANSWER 4

I think answer 1 is also correct. A stateless has also a conversational state, but not between methods (see also EJB Spec 7.3)
What is the correct definition of "conversational state"?


Michael Meyer
Karthikeyan Varadarajan
Ranch Hand

Joined: Jul 04, 2002
Posts: 98
HI Michael,

'Having conversational State ' is different from 'Maintaining the conversational State'.

Both Statefull and Stateless session beans can have conversation data. But only Stateful beans can maintain it.

In case of the stateless bean , if your are calling second time , there are chance you can get some other bean to serve your request.

~With SMile

~With Smile<br />VK
Michael Meyer

Joined: May 14, 2004
Posts: 4
Hi Karthikeyan,

thanks for your answer.
I should stop my preparation for two days ;-)


I agree. Here's the link:
subject: conversational state
jQuery in Action, 3rd edition