Enterprise Java Beans is basically a server side component architecture for developing modular enterprise applications based on Java platform.EJB basically encapsulates the business logic and implements back end business logic of enterprise applications.

No mention of Enterprise Java bean application development would be incomplete without get an understanding of what a Java session bean actually is. Java session beans are actually Java components that run on either single EJB containers or EJB containers there is a part of the standard Java Platform, Enterprise Edition application servers. These java beans are typically used to model a specific task or use cases as input of customer information or execution of a process that maintains a conversation state with a client application.

Most database driven applications that are developed using open source technologies has a tripartite structure. The web application itself is running in the browser on a desktop or a laptop. Users can only access the front end of the application to input of data or search strings. Java is platform independent allows applications to be accessed on any device as a PDA or cell phone or a telnet device.

Enterprise Java bean application development occurs by employing a three-tier structure consisting of a front known as a web container, an EJB container, the third layer is the database. This tripartite structure has proved to be extremely useful for enterprise application development.

The application, when access to all telnet device makes a user interface complete with data entry screens and submit buttons on the user's device. This interface is usually developed through one of the technologies like Java Server Pages, faces java server, or Java servlets. Any event fired by the user as a query or a request to add certain elements in a cart invokes a call session bean running in an Enterprise Java Beans container. Any of the above mentioned technologies JSP, JSF, Java servlets can be used to call a session bean. Since Enterprise Java bean container is connected to the database, it has the capacity to handle queries from users. When the session bean is invoked, it processes the request and sends a response back to the web application. Web application then formats the response as required, and returns a response to the customer end.

Be open-source EJB application development has a very bright future in the enterprise application development space in the time to come.

EJB based Java Development Services [http://www.icreonglobal.com] makes the J2EE Architecture more powerful with the help of java web development [http://www.icreonglobal.com/java-development.shtml] thats why Outsource Java services are more popular comparison open source technologies.

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