Are we allowed to change the transaction isolation property in middle of a transaction?

EJB Interview Questions and Answers

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37. Are we allowed to change the transaction isolation property in middle of a transaction?

No. You cannot change the transaction isolation level in the middle of transaction.

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Other Interview Questions

• Is there any way to read values from an entity bean without locking it for the rest of the transaction (e.g. read-only transactions)?
• Is is possible for an EJB client to marshal an object of class java.lang.Class to an EJB?
• What is the advantage of using Entity bean for database operations, over directly using JDBC API to do database operations? When would I use one over the other?
• What is message-driven bean?
• Why is ejbFindByPrimaryKey mandatory?
• Is there any way to read values from an entity bean without locking it for the rest of the transaction (e.g. read-only transactions)?
• What are the key benefits of the EJB technology?
• Is it legal to have static initializer blocks in EJB?
• What are the key features of the EJB technology?
• Is it possible to share an HttpSession between a JSP and EJB? What happens when I change a value in the HttpSession from inside an EJB?
• More...