Java 2 Platform, Enterprise Edition is a platform designed for mainframe-scale in order to compute distinctive large endeavor. Sun Microsystems putting his hands together with its industry partner IBM jointly deliberated J2EE in order to make the application development simpler and easier in an emaciated client tiered environment. J2EE abridges development of the application and it minimizes the requirement for programming and programmer guidance by generating consistent, reusable modular components and also by facilitating the tier to hold many aspects of programming instinctively. The J2EE platform holds a few services like APIs and Protocols. This will provide the functionality to develop a multitiered Web Based application.
In the term J2EE, 2 in the abbreviation J2EE denotes for Version 2. J2EE is a Java Platform Version 2. Now-a-days the number 2 has been ignored and so J2EE has now become as Java EE. Here EE stands for Enterprise Edition which is the most prevailing form of Java platform. J2EE improves J2SE with the following features. They are XML, Java Server Pages, Java Servlets API and JavaBeans. J2EE is a platform which is mainly used for developing a multi-tired architecture programming application depending on components executing on an application server.
J2EE comprises numerous mechanism of the Java 2 Platform, Standard Edition and they are as follows.
o The JDK which is known as Java Development Kit is integrated as the central part of language package.
o In order to ensure and enrich portability a technology called Write Once and Run Anywhere is incorporated here.
o A prop up is granted for CORBA, it is nothing but a Common Object Request Broker Architecture, a precursor of EJB, and it is nothing just an Enterprise JavaBeans. The Java objects can converse with Common Object Request Broker Architecture objects both locally and also over a network with the help of its interface broker.
o Java Database Connectivity 2.0, the Java equivalent to Open Database Connectivity is included as the standard and customary interface for Java databases.
o In both local and Web-based applications a security model is implemented to safe guard data.
J2EE also includes quite a large number of components in addition to the J2SE model. They are as followed:
o Maximum support is granted for EJB (Enterprise JavaBeans). EJB is a server-based technology which is used to deliver program components in an enterprise environment. It gives a good support to XML. XML is nothing but the Extensible Markup Language, it has improved consumption and safety features.
o The Java servlet Application Programming Interface increases and boost ups the reliability for the program developers without involving a Graphical User Interface
o A Java Server Page is the same as the Active Server Pages which are ultimately used for creating and manipulating dynamic Web-enabled data access.