Hibernate Questions

Here we go:

• What is ORM?
• What are the main advantages of using Hibernate?
• How do you configure Hibernate?
• What causes LazyInitializationException? What steps do you need to prevent this from happening?
• What is OpenSessionInView pattern in Hibernate and when would you want to use it?
• What is SessionFactory? Is it thread safe?
• What is a Session? Can you share session object between threads?
• What is HQL?
• Name 3 inheritance mapping strategy and describe the limitations of each.
• What do you think of using hibernate's own connection pooling algorithm?
• Name the core interfaces of Hibernate framework.
• What is the difference between session.load() and session.get()
• What is the difference between session.saveOrUpdate() and session.merge()
• What is a detached object? What other instance states does Hibernate have?
• When would you use inverse in Hibernate?
• What is the difference between join and select fetch strategy?
• What are the advantages of using Hibernate vs JDBC?
• What are the main differences between Hibernate and EJB?