Understanding the Distinction between Session and Entity Beans in J2EE

In J2EE, the key disparity lies in the role and purpose of Session and Entity beans.

Session Beans:

Session beans in J2EE are primarily used to represent the behavior or business logic of an application. They are responsible for managing the interaction with clients and executing specific tasks. Session beans are transient and do not persist their state between method calls.

Entity Beans:

On the other hand, Entity beans focus on the representation of persistent data. They are used for storing and retrieving information from a database. Entity beans have a direct mapping to tables in the database and maintain their state between method calls.

Key Difference:

The primary distinction between Session and Entity beans is that Session beans handle business logic and are transient, while Entity beans manage data persistence and maintain state between method calls.

Understanding when and how to utilize Session and Entity beans is crucial in developing efficient and maintainable J2EE applications.