Enterprise beans

• Two main types (described in the next section): entity beans and session beans

• Implement the distributed services of the application

• Use a "home interface" and "remote interface" to handle distributed connections and interact with the EJB container.

  • Home interface

    • Defines lifecycle methods, such as those used for creating new bean instances, removing beans, finding beans, and managing a bean's persistent state in a database.

    • Called by both the EJB container and client objects

  • Remote interface

    • Defines the actual application-specific methods provided by the bean

    • Called by client objects