Java EE application or Java platform is a unit of Java EE function which is deployable. This may be either in a single Java EE module or a complete package of EAR file containing group of modules along with Java EE application deployment descriptor. In this technology, Java EE applications are being engineered for distributing across multiple computing tiers. Applications of enterprise have following combinations-
- Enterprise Java bean modules contain all JAR files packaged into single module.
- All web modules packaged into WAR files.
- Connector’s modules or resource adapters that are packaged into RAR files.
- Many session initiation protocol modules packaged into SAR files.
- Application client modules
- Extra JAR files that contains dependent classes or other components which may be required by application.
Java platform is a Java computing platform of Oracle. This platform of Java computation also provides API and run time environment to develop and run enterprise software, it also include network and web services. Other applications included in it may be large scale, multi- tiered, scalable, reliable and secure network applications. Java EE also has Java Platform, standard edition that provides object relational mapping, distributed and multi- tier architectures and web services. Platform also has incorporated design that is based on modular components which runs on application server. Software prepared for Java EE has its primary development in Java programming language.
This platform prefers convention over configuration and annotations made for configuration. Use of XML is to override annotations or to deviate from platform defaults.
Key Points for Standards and Specifications Set For Java EE
Better definition of Java EE may give after its specifications. As per specifications given by Java Community process, Java providers must meet few conformance requirements for rendering their Java products as per Java EE complaints. Many API specifications of Java EE are RMI, e-mails, JMS, web services, XML, etc. It also defines right way of coordination between them.
Java EE also provides few specifications which may be unique and essential for Java EE. These features consists of enterprise Java beans, connectors, servlets, Java server pages and many other web services and technologies. It also allows developers to develop enterprise applications which may be ported and are scalable. Their technology also integrates with legacy technology. Java EE application server also handles transactions, security, scalability, and concurrency. These features absolutely help business developers to apply business logic of components on prior basis.