This post aims at clarifying acronyms and concepts used in the J2EE paradigm. J2EE stands for Java to Platform, Entreprise Edition. It enables the creation of modular Java applications to be deployed on application servers. It relies on Java SE, a core set of Java libraries upon which all Java applications are implemented. General Concepts Before we dive into J2EE, here is a reminder of general concepts: Multitier Application – A multitier application (or multitier architecture) is an application divided into multiple logical parts which are implemented (most often) on multiple servers. For example, the 3-tier model with a user and its browser, the application server and the database located on a separate server dealing with application server requests. Multitier Service – When thinking about services in the 3-tier model, the application server is a service providing responses to user requests. The database server provides answers to queries made by the application server. Java Bean – These are Java classes containing private properties, made accessible with getters and setter methods. Technically speaking, these classes must also have a no parameter constructor and implement the Serializable interface. J2EE 5 Concepts
Posted on: Tue, 15 Jul 2014 07:34:09 +0000
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