Explain the important elements of EJB?

devquora
devquora

Posted On: Feb 22, 2018

 

  1. Entity- It is the representation of persistence data maintenance in the database.
  2. Entity Manager- It is used as an Interface. It is used to perform the various function like add, delete, Update, find etc. It is also used to handles the queries.
  3. Persistence unit- It is the collection of all the entity classes and used as the persistence mechanism.
  4. Data source- As the name suggests it is related to the data storage like properties.

    Related Questions

    Please Login or Register to leave a response.

    Related Questions

    EJB Interview Questions

    What is EJB?

    EJB stands for Enterprise java bean is a server-side software that is used to construct the module of enterprise software...

    EJB Interview Questions

    What are the various types of Entrepreneur java bean?

    Entity Bean: The object that is planned with the database is referred to an entity bean. It is used to execute..

    EJB Interview Questions

    What are the various types of Entity beam?

    CMP Entity bean: It is defined as Container Managed Persistence. It is the complex type of bean and very effective for the develope..