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EJB interview questions

  • what are Container-Managed Transactional attributes ? view answer
  • What's difference between httpsession and EJB session bean ? view answer
  • What are the Differences between EJB 3.0 and EJB 2.1? view answer
  • Q. what are Container-Managed Transactional arributes ? view answer
  • What is the default transaction attribute for an EJB? view answer
  • Difference between SessionBean remove() and EntityBean remove() method? view answer
  • Why do we have a remove method in both EJBHome and EJBObject? view answer
  • 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? view answer
  • What is the difference between a ?Coarse Grained? Entity Bean and a ?Fine Grained? Entity Bean? view answer
  • What are the Interfaces need to create to implement Session Bean with Exmaple? view answer
  • What are the parameters must follow for Session Bean ? view answer
  • What are the callbacks method in Session Bean ? view answer
  • What are the ways for a client application to get an EJB object? view answer
  • What is handle and why it is used in EJB? view answer
  • What is an EJB Context? view answer
  • Implement Local and Remote Interfaces in EJB? view answer
  • How can I call one EJB from inside of another EJB? view answer
  • What is the difference between Message Driven Beans and Stateless Session beans? view answer
  • What happens if remove( ) is never invoked on a session bean? view answer
  • Can you control when passivation occurs? view answer
  • Can the primary key in the entity bean be a Java primitive type such as int? view answer
  • The EJB container implements the EJBHome and EJBObject classes. For every request from a unique client, does the container create a separate instance of the generated EJBHome and EJBObject classes? view answer
  • How can i maintain a user session between servlets and stateful session ejbs? view answer
  • What's difference between Servlet/JSP session and EJB session view answer
  • 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? view answer
  • How to call any EJB from a servlet/JSP/Java Client? view answer
  • What are transaction isolation levels in EJB? view answer
  • What are transaction attributes? view answer
  • What is bean managed transaction? view answer
  • Can Entity Beans have no create() methods? view answer
  • What are the callback methods in Entity beans? view answer
  • What is the difference between Container-Managed Persistent (CMP) bean and Bean-Managed Persistent(BMP) ? view answer
  • What are the methods of Entity Bean? view answer
  • What is Entity Bean? view answer
  • What is Session Bean? view answer
  • What are the different kinds of enterprise beans? view answer

!!! EJB interview questions !!!

What is an EJB Context?



EJBContext is an interface that is implemented by the container, and it is also a part of the bean-container contract. Entity beans use a subclass of EJBContext called EntityContext. Session beans use a subclass called SessionContext. These EJBContext objects provide the bean class with information about its container, the client using the bean and the bean itself. They also provide other functions. See the API docs and the spec for more details

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