Talk about the Prana IoC Container at the Adobe AIR Pre-Release tour in Gent, Belgium (26/01/2008)

1. Christophe Herreman www.herrodius.com Adobe Usergroup Belgium 26 january 2008

12. What is an IoC Container ? Creates and assembles components/objects and manages their lifecycle. Prana uses an XML dialect to define the “application context” (what objects are available and how they are related)

13. The Application Context // setter injection <objects> <object id=“a” class=“A”> <property name=“b” ref=“b”/> </object> <object id=“b” class=“B”/> </objects> // constructor injection <objects> <object id=“a” class=“A”> <constructor-arg ref=“b”/> </object> <object id=“b” class=“B”/> </objects>

14. Working with the IoC container <mx:Application xmlns:mx=&quot;http://www.adobe.com/2006/mxml&quot; creationComplete=&quot;onCreationComplete()“> ... private function onCreationComplete():void { _objectsLoader = new XmlObjectDefinitionsLoader(); _objectsLoader.addEventListener(ObjectDefinitionsLoaderEvent.COMPLETE, onObjectDefinitionsLoaderComplete); _objectsLoader.load(&quot;application-context.xml&quot;); } private function onObjectDefinitionsLoaderComplete(event:ObjectDefinitionsLoaderEvent):void { var container:ObjectContainer = _objectsLoader.container; var a:A = container.getObject(“a”); } ... </mx:Application>

17. Questions?