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Java Platform, Enterprise Edition or '''Java EE''' (formerly known as Java 2 Platform, Enterprise Edition or J2EE up to version 1.4), is a programming platform—part of the Java Platform —for developing and running distributed Multi-tier Architecture Java Application s, based largely on modular Software Component s running on an Application Server . The Java EE platform is defined by a ''specification''. Java EE is also considered informally to be a Standard because providers must agree to certain conformance requirements in order to declare their products as ''Java EE compliant''; albeit with no ISO or ECMA standard. Java EE includes several API specifications, such as JDBC , client-side Applet s, RPC , CORBA , and defines how to coordinate them. Java EE also features some specifications unique to Java EE for components. These include Enterprise Java Bean s, Servlet s, Portlet s (following the Java Portlet Specification ), JavaServer Pages and several Web Service technologies. This allows the developer to create an Enterprise Application that is portable between platforms and scalable, while integrating with legacy technologies. HISTORY The original J2EE specification was developed by , the Java EE 5 specification is being developed under JSR 244 . GENERAL APIS The Java EE APIs includes several technologies that extend the functionality of the base Java SE API s. The Enterprise Java Beans API defines a set of APIs that a distributed object container will support in order to provide Persistence , Remote Procedure Call s (using RMI or RMI-IIOP ), Concurrency Control , and Access Control for Distributed Object s. The Servlets API defines a set of APIs between a web container and a servlet that is responsible for processing requests and issuing responses. The javax.servlet.jsp and packages define the JavaServer Pages API.The javax.naming, , , and packages define the Java Naming And Directory Interface (JNDI) API., The java.sql and javax.sql packages define the Java Database Connectivity (JDBC) API .These packages define the Java Transaction API (JTA) . These packages define the JAXP API. These packages define the Java Message Service (JMS) API. LOW COST DEVELOPMENT One of the benefits of Java EE as a platform is that it is possible to get started with little or no cost. The Java EE implementation from Sun Microsystems can be downloaded for free, and there are a great many Open Source tools available to extend the platform or to simplify Development . Examples of third party open source Java development tools include:
J2EE 1.4 APPLICATION SERVER CERTIFIED
JAVA EE VS. .NET Arguments about the merits of Java EE Vs. Microsoft's .NET abound. One " Consensus " is that Java EE is best for Multiplatform Architectures , whereas .NET should be used for a strictly Microsoft Platform (and not to be migrated to for non-Microsoft platform integration). PUBLICATIONS
SEE ALSO EXTERNAL LINKS
Examples of Java EE Application Servers include:
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