The Portal Blueprint

     

Here are some of the concepts, definitions, standards, and architecture that form the basis on which all Java-based portal server software is built. Many of these concepts, definitions, standards, and architectures hold equally true for both WebSphere Application Server and WebSphere Portal server.

J2EE Architecture in WebSphere Portal

Since WebSphere Portal is based on Java, its architecture closely follows the J2EE architecture. As such, the terminology and concepts will seem familiar to those who already know the Java language. J2EE (Java 2 Platform, Enterprise Edition) defines the standard for developing multi- tier enterprise applications. J2EE simplifies enterprise applications by basing them on standardized, modular components; by providing a complete set of services to those components; and by handling many details of application behavior automatically, without complex programming. These modular components are servlets, Java Server Pages (JSPs), and Enterprise Java Beans (EJBs). The set of services is provided by the containers in which these components operate , such as the Web server or the EJB container. As such, the architecture lets a client indirectly access back-end enterprise applications while protecting enterprise-sensitive data. J2EE comes with the standard application model and platform. It not only comes with a reference implementation but also a compatibility test suite for products wanting to achieve J2EE certification.



IBM WebSphere and Lotus Implementing Collaborative Solutions
IBM(R) WebSphere(R) and Lotus: Implementing Collaborative Solutions
ISBN: 0131443305
EAN: 2147483647
Year: 2003
Pages: 169

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