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Why Use J2EE Technology for Integrating Enterprise Apps?

  • J2EE technology is designed to facilitate the development of applications that make enterprise integration services accessible to customers. It provides a platform for developers with enterprise features such as distributed computing and web services

J2EE technology for enterprise application development

Java as a programming language has opened doors to many possibilities for businesses to grow and improve their sales and conversion rates since its beginning. Known for being a general-purpose, rich, and dynamic programming language, Java is the first choice to develop enterprise web, mobile, and desktop applications, quicker and easier. In recent years, it is used in nearly every modern sector for many purposes, thanks to its open-source code. Besides, Java offers a robust and scalable platform to build websites, business applications, web and mobile applications using J2EE technology and platform.

What is J2EE technology? 

The Java EE (J2EE) stands for Java Enterprise Edition, which is a standalone Java environment used by the software developers for building and deploying a web-based application or a website. J2EE technology provides a platform for developers with enterprise features such as distributed computing and web services. The platform uses Java programming language due to its benefits in terms of reliability, security, cross-platform portability, smooth implementation, frequent upgrades to the latest & trending technology and more. J2EE enterprise application development helps enterprises utilise simple methods of developing software applications and reduces programming and training costs because it lets developers build standardised and reusable modules. The challenge of keeping up with the rapid growth of enterprises is being met head-on by J2EE,  the current Java architecture and evolving J2EE applications development has taken huge leaps in integrating enterprise applications.

J2EE Enterprise Applications Development

The J2EE application development model includes Java programming language and the Java virtual machine (JVM). The flexibility, portability, security and open-source nature of J2EE provides a strong base for the J2EE application model. J2EE is designed to facilitate the development of applications that make enterprise integration services accessible to customers. The J2EE application model defines an architecture for implementing services as multi-tier applications that enables it to achieve the scalability, accessibility, and manageability demanded by enterprise applications. The developers can rely on J2EE technology to provide solutions for developing multi-tier services.

Implementation of Java J2ee applications uses a distributed multi-tier application model for developing enterprise applications. The procedure involved in it is to divide application logic into components according to function. These component applications are generally installed as J2EE applications in different client machines, feeding to varying tier-needs. In the J2EE environment, client-tier components run on the client machine, web-tier and business-tier components run on the Java EE server and enterprise information system (EIS)-tier software on the EIS server. J2EE multitiered applications are seen as three-tiered applications because of their distribution over three locations - client machines, the Java EE server machine, and the database at the back end.

J2EE Security

Other enterprise application tools need platform-specific security measures in each application, the advantage of J2EE security environment is that it allows security constraints to be defined at run time.  The Java EE platform makes apps portable to a broader variety of security implementations by saving developers the struggle of integrating security features. The Java EE platform presents standard access control definitions that are defined by the developer and interpreted when the app is deployed on the server. I also provide standard login mechanisms, so app developers do not need to Integrate these mechanisms in their applications.

Specifications of J2EE

J2EE has a lot of specifications which are valuable in developing web pages, handling distributed queues, reading and writing from database in a transactional way. J2EE contains many APIs which have the functionalities of base J2SE APIs such as Enterprise JavaBeans, connectors, Servlets, Java Server Pages and several web service technologies.

Web specifications of J2EE

Servlet- It defines how you can control HTTP requests either synchronously or asynchronously. It is low level, and other J2EE specifications depend on it.

WebSocket- WebSocket is a computer communication protocol, providing full-duplex communication channels over a single TCP connection. This API provides a set of APIs to help WebSocket connections.

JavaServer Faces- It is a Java-based web application framework designed to simplify development integration of web-based user interfaces.

Unified Expression Language- It is a special-purpose programming language frequently used in Java web application development for embedding and evaluating expressions in web pages.  It is a simple language which was designed to help web application developers.

Enterprise Specifications of J2EE

Contexts and Dependency Injection- It provides a container to inject dependencies as in Swing.

Java Persistence API- They are the specifications of object-relational mapping between relational database tables and Java classes.

Java Message Service- It provides a natural way for a Java program to create, send and read messages on an enterprise messaging system.

Enterprise JavaBean- It is a set of lightweight APIs that an object container has to provide transactions, concurrency control, and remote procedure calls.

Java Transaction API- It carries the interfaces and annotations to build interaction between transaction support offered by J2EE. It allows applications to perform distributed transactions, i.e., transactions that access and update data on two or more networked computer resources.

Advantages of J2EE/Java Applications development

Complete Web services support: The J2EE platform provides a framework for developing and deploying web services on the Java platform. The Java API for XML-based RPC (JAX-RPC) lets Java developers create SOAP-based interoperable and portable web services. They use the standard JAX-RPC programming model to develop SOAP-based web service clients and endpoints. Web service endpoint is defined using a Web Services Description Language (WSDL) document.

Platform independent: Enterprise applications written in Java are independent of any programming platform at both the source and binary stages, that is why these applications can run anywhere. It is essential for enterprise software and apps intended for cyberspace. This programming language opens the potential to run the same program from different systems.

Simplified connectivity: Because of its open architecture approach, J2EE technology makes it convenient to connect the applications and systems you already have and bring those features to the web, mobile phones and other devices. It offers Java Message Service for integrating several applications in a loosely coupled, asynchronous system. The J2EE platform also provides support for CORBA to tightly link systems through remote method calls. Additionally, the J2EE platform has J2EE Connectors for connecting to enterprise information systems such as ERP systems, CRM applications, and packaged financial applications. 

Efficiency: Latest web applications use the Common Gateway Interface (CGI) for dynamic content generation and back-end support. JSP and Servlets provide a much more effective method of handling user requests. For every user request, a CGI application must form a new process. But once you load a JSP/Servlet into memory, it generates a lightweight thread to handle the user process. It allows you to manage thousands of concurrent users.

Freedom of choice: J2EE technology is a set of standards that many businesses can implement. They are open to compete on implementations but not on standards or APIs. Sun provides a comprehensive J2EE Compatibility Test Suite (CTS) to J2EE licensees. The J2EE CTS helps ensure compatibility among the application vendors and portability for the applications and components written for the J2EE platform. The J2EE platform also delivers Write Once, Run Anywhere (WORA) to the server.

Reusability: As it is an object-oriented technology, it allows software developers to create standard programs. The cryptogram is reusable, and hence it can be used frequently. Programmers can consequently make use of extra time on the logical part instead of coding the same code again and again.

Conclusion

Learning about Java/J2EE is a never-ending procedure. J2EE is a vast technology that has always upgraded itself for more high-grade features. It provides a  platform for Custom J2EE development for high-performing Web-based enterprise applications. J2EE provides services, APIs, and protocols that allow the development of multi-tiered web-based applications.  You can write your code once, and deploy it anywhere on a Java-compliant platform and all Java applications are independent of the underlying operating system.

Evon technologies have decade-long and deep experience in modern J2EE architecture, Java front-end and backend frameworks, along with a design-centric approach to help you meet your enterprise and technology goals. We provide a broad domain of enterprise application services: from ERP, B2B and B2C Web Portals to Business Intelligence & Analytics, and CRM. Our extensive experience in J2EE based web and app development has led us through building scalable J2EE web apps, Enterprise Information Portals, Enterprise integration, etc. Get in touch with us to hire J2EE developers or email us at This email address is being protected from spambots. You need JavaScript enabled to view it. to know more about how we can assist you.

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