Mastery in Java EJB: Step by Step EJB Application

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EJB stands for Enterprise Java Bean.

EJB (Corporate Java Bean) is a Java framework for developing scalable, resilient, and secure enterprise applications.

Because to its simplicity and annotations, EJB 3 development is faster than EJB 2.

@EJB, @Stateless, @Stateful, @TransactionManagement, @Resources, @SessionContext, and so on.

EJB Specification Topics

What exactly is EJB?

What are enterprise java beans (EJB) and what are their benefits?

Bean Session

The business logic is represented by the session bean. It might be either stateless, stateful, or singleton.

Session Bean with no state

What is a stateless session bean, how it works, and an example.

Session Bean, Stately

What is a stateful session bean, how it works, and an example.

JMS Training

How to build robust, asynchronous messages for distributed applications. What exactly are messaging domains?

What is Java Messaging Service (JMS) and what are the benefits of JMS?

What exactly is JMS Queue? It is used for peer-to-peer communications, in which a single message is sent to only one recipient.

What exactly is JMS Topic? It is also known as the Publisher and Subscriber model, in which a single message is sent to all subscribers.

Bean with a Message

A MDB is a JMS client that is triggered by a message. It’s installed on the application server.

Bean the Entity

It is deprecated in EJB 3.2. JPA has now taken its position.

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