Web Development

Application server@ejb

An application server is an application program that accepts connections in order to service requests, by sending back responses. An application server can run remotely(connected to client through a computer network) or can exist on the same computer where the client application is running. Examples: File server Database server Backup server Web server FTP server… Continue reading Application server@ejb

Web Development

session_bean:stateful&stateless@ejb

A session bean represents a single client inside the J2EE server. To access an application that is deployed on the server, the client invokes the session bean’s methods. The session bean performs work for its client, shielding the client from complexity by executing business tasks inside the server. a session bean is similar to an… Continue reading session_bean:stateful&stateless@ejb

Web Development

@intro_ejb

Enterprise JavaBeans are server-side, moduler, and reusable components that comprise specific units of functionality. They are similar to the classes we create every day, but are subject to special restrictions and must provide specific interfaces for container and client use and access. In addition, they can only run properly in an EJB container, which manages… Continue reading @intro_ejb