202. Ajax in Java Applications

202. Ajax in Java Applications Version 5.0 This course guides Java developers through the sometimes bewildering array of approaches to adding Ajax functionality into their web applications. We analyze the challenges of supporting Ajax from the server side, going beyond simple Ajax request-handling strategies to consider goals such as: • Adhering to the model/view/controller pattern • Minimizing duplication of business and presentation logic • Providing Ajax code transparent access to the application's domain model Reuse mechanisms such as JSP tag

files and JSF facelets are also considered. We then look at two of the dominant forms of Ajax framework: the RMI approach, and JSF component libraries. For each class of tool we investigate two popular options -- DWR and jabsorb; RichFaces and Trinidad -- and use that comparison to discover the broader architectural patterns of that approach. Students will complete the course ready to make intelligent choices of Ajax tooling for their applications, and to start working with their chosen framework. Prerequisites • Understanding of the Ajax programming model is required. This course is intended to follow Course 201, Developing Ajax Applications, or some equivalent training. • Significant Java programming experience is required. • Basic servlets and JSP programming experience is required. • JSF experience will be helpful for the final unit, but is not required. Copyright © Capstone Courseware, LLC. All rights reserved. Learning Objectives • Identify architectural and design challenges inherent in the use of Ajax for Java applications. • Define a request-handling path that best addresses the needs of a given Java web application. • Manage script content and bind scripts to graphical widgets using JSP. • Use JSP tag files to consolidate presentation chunks such that...

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