Marty Hall : Why Ajax : Using Ajax in ur web apps

Why WebApps - Ajax

• Asynchronous JavaScript and XML => doesnt hold good anymore
  
• allow the browser to utilize the time when the main page is gone tofetch the result of your initial app
• Add/modify content on the webpage at runtime
  
• trends -> more jobs on Ajax than any other technology - php, vb, asp etc...

Ajaxifying an Application

• libraries - jQuery, ext-ja, dojo, yui, prototype, google closure, mootols
• Browser allow calls to only the server from where the original code came in, due to firewall issues.

• Situation 2 - Hybrid
  
• Libraries to use for new apps - JSF 2.0, Struts 2.0, Spring MVC 3.
• JSF is better because
• integrated in main code - jquery needs u to write javascript
  
• no javascript to write - a simple tag

• Situation 3 - Hardcore Ajax
• Google web toolkit
• Use java everywhere
• Write java code at front end -> compiles to javascript at run time
  
• Write java code at back end-> provides facility of communication in terms of java objects

Buzzwords

• Jboss Seam <-> JSF 2.0
  
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