What are enterprise java beans (ejb)?

What Are Enterprise Java Beans (EJB)?

To put it simply, Enterprise Java Beans (EJB) is a Java Beans that works in an Enterprise Atmosphere. And, a Java Beans is a POJO designed according to the standards of the Java Beans Requirements.

This article shall try to determine the idea behind JEE with a concentrate on EJB in particular.

The launch of EJB is handled by the Java Group Process (JCP) as a Java Requirements Demand (JSR). The latest launch edition EJB 3.2 is described by JSR 345. Before to EJB 3.0, chronic elements were a part of the EJB design.

Later, JPA appeared as another element, handled by its own JSR.

As mentioned previously, The enterprise beans as specific as JPA have been usurped but provide determination support, matching EJB’s element design structure.

Entity beans are things that signify chronic business information.

EE can be viewed as nominally as a three-tier architecture: Web package for life-cycle control of Java Servlets, JSP and handled beans; EJB package for life-cycle control of Enterprise Java Beans and Persistence part for offering JPA support to the enterprise system.

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