In EJB architecture, the Container is the second outermost layer. The main tasks of the application server are: Some most popular application servers are Web-logic, Tomcat, JBoss, Web-sphere, Wildfly, and Glass-finish. It provides the necessary environment to execute those applications. The application layer plays an important role in executing the application developed using the beans. In the EJB architecture, the Application server is the outermost layer that holds or contains the Container to be deployed. In order to deploy the containers, it requires the Application server. The containers of the EJB cannot be self-deployed. In the above diagram, the logical representation of how EJBs are invoked and deployed by using RMI(Remote Method Invocation) is defined. The graphical representation of the EJB architecture is given below. The EJB architecture has two main layers, i.e., Application Server and EJB Container, based on which the EJB architecture exist. This architecture consists of four layers, i.e., Client layer, Web layer, Application layer, and Data layer. In EJB, the beans are run in a container having four-tier architecture. EJB is conceptually based on the Java RMI(Remote Method Invocation) specification. The EJB stands for Enterprise Java beans that is a server-based architecture that follows the specifications and requirements of the enterprise environment. Geeksforgeeks rmi java update#We can update and read the value of any variable of any object by using the setter and getter, respectively. The setter/getter method and the single public constructor are used to govern that single accessible object. This single accessible object is maintainable, customizable, and reusable. Java beans incorporate a set of objects into one accessible object that can be accessed easily from any application.
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