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JEE( J2EE )Applications Development

It has been more than a decade since Java first came on the scene. Java brought with it a freshness of approach and for the first time, developers could think about multi-tiered applications, inter-operable features and above all comprehensive security. Java applications became inseparable part of networked and distributed applications development. The greatest benefactor of Java Technologies has been the Enterprises.

Java and the Enterprises

With the spurt in the internet economy, the need for exclusive application development for the enterprises, began to be acutely felt. A standardised architecture for database management, was very much the crying need for enterprise application development. Java came up with J2EE( Java 2 enterprise edition). J2EE gained wide acceptance and soon became the standard for enterprise architecture. The challenge of keeping up with the blistering pace of growth of e-enterprises, is being met head on by JEE and today Java architecture and the ensuing JEE applications development has made such quantum leaps in Application Development.

J2EE (Presently re-christened as JEE)

Java has succeeded remarkably in providing an exciting technology for enterprises in their attempts to remain competitive and flexible. J2EE applications and applications development have become more popular among developers. The greatest challenge for J2EE applications has become managing them,post release. Java Platform, Enterprise Edition (Java EE), in purely technical terms, is defined as a set of coordinated technologies and practices that enable solutions for developing, deploying, and managing multi-tier, server-centric applications.

Built solidly on the Java Platform, Java EE adds the capabilities that provide a complete, stable, secure, and fast Java platform for the enterprise. The advantage of JEE lies in the fact that it substantially reduces both effort and money in developing multi-tier solutions. Java Platform, Enterprise Edition has the top most priority of making development easier. The chief components and features of JEE are Enterprise JavaBeans (EJB), Java Server Faces (JSF), and the latest web services APIs. Java EE while making coding simpler and more straightforward, still succeeds in maintaining the inherent hold of JEE as the most powerful platform for enterprise application development.

JEE Applications Development

The Java EE application development model incorporates Java programming language and the Java virtual machine. The flexibility, portability, security, open-source nature of JEE provides a strong basis for the JEE application model. Java EE has been designed to facilitate development of applications that make enterprise services available for customers.The Java EE application model clearly defines an architecture for implementing services as multi-tier applications that deliver the scalability, accessibility, and manageability needed by enterprise-level applications. The developers can rely on the JEE platform to provide solutions for developing multi-tier services.

The Java EE platform uses a distributed multitiered application model for enterprise applications. Here the approach is to divide application logic into components according to function. These differing component applications are ideally installed as JEE applications in different client machines, catering to varying tier-needs. Under the JEE environment, client-tier components run on the client machine, web-tier components run on the Java EE server, business-tier components run on the Java EE server and enterprise information system (EIS)-tier software runs on the EIS server. Java EE multitiered applications are generally considered to be three-tiered applications because they are distributed over three locations, namely client machines, the Java EE server machine, and the database or legacy machines at the back end.

JEE - Security

While other enterprise application tools require platform-specific security measures in each application, the advantage of Java EE security environment lies in the fact that it enables security constraints to be defined at deployment time. The Java EE platform makes applications portable to a wide variety of security implementations by sparing application developers the trouble of implementing security features. The Java EE platform provides standard access control definitions that are defined by the developer and interpreted when the application is deployed on the server. Java EE also provides standard login mechanisms so application developers do not have to implement these mechanisms in their applications.

JEE Components

Java EE applications are made up of components. A Java EE component is a self-contained functional software unit that is assembled into a Java EE application with its related classes and files and that communicates with other components. The Java EE specification defines the Java EE components: application clients and applets are components that run on the client, Java Servlet, Java Server Faces and Java Server Pages(JSP) technology components are web components that run on the server and Enterprise Java Beans (EJB) components are business components that run on the server.

Java EE components are written in the Java programming language and are compiled in the same way as any program in the language. A Java Applet is a small client application written in the Java programming language, getting executed in the Java Virtual Machine installed in the web browser. The client systems will require the Java Plug-in and a security policy file in order for the applet to successfully execute in the web browser. An application client runs on a client machine and provides a way for users to handle tasks that require a richer user interface than can be provided by a markup language. It typically has a graphical user interface (GUI) created from the Swing or the Abstract Window Toolkit (AWT) API. Application clients directly access enterprise beans running in the business tier.

The server and client tiers include components based on the JavaBeans component architecture (JavaBeans components) to manage the data flow between an application client or applet and components running on the Java EE server. Another advantage is that Java EE application uses a thin browser-based client or thick application client.

Advantages of JEE applications development

It must be obvious and clear from the preceding paragraphs, that JEE offers a no-nonsense, developer friendly application development platform. JEE ranks above other peer application development platforms like .NET, in the matter of scalability,flexibility and interoperability. Providing adaptive and seamless architecture for developers, JEE fulfills the need for developing mult-tiered applications and distributed applications,without the complexity of writing individual codes for each set of business applications. JEE has arrived on the scene when developers were feeling the pinch of a reliable development platform. Today JEE has nudged out many other platforms by sheer virtuosity and ease of development.

What Java Development India Offer?

Java Development India offers JEE application development, JEE consulting and JEE related solutions from our offshore software development outsourcing centre at Kochi, Kerala in India

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