Cairngorm Secret Tip #3: Responders for View Notifications

As Flex continues to grow as the choice RIA technology, many developers start investigating and apply Java design patterns to Flex implementations. Similar to Java Struts, Cairngorm is a MVC (Model-View-Controller) framework – endorsed by Adobe – that is widely popular within the community. One of issues that frequently confuses, blocks, or complicates Cairngorm implementations is the issue of “view notifications”. Every Cairngorm developer ask the following question at some point: How should the Cairngorm business layer best communicate with the Presentation layer?...