Adobe

Chapter 6Go Fly

A Real-World Apollo Application

This Apollo application, written in Flex (the serverside is a ColdFusion component, or CFC), presents a simple user interface that accepts an airline code and a flight number. Clicking the Search button calls a web service that communicates with a third-party, web-based infrastructure that provides close to realtime flight-tracking information (updates are broadcast at approximately six-minute intervals). Knowing the six-minute time lag between flight information updates, the Apollo application uses the Flex Timer class to poll the web service every six minutes. Polling that is more frequent would be a waste of resources. By leveraging Flex Data Services (now called Live Cycle Data Services), the ...