Package	system.process
Class	public class Chain
Inheritance	Chain TaskGroup CoreAction Task Object

A chain is a sequence with a finite or infinite number of actions. All actions registered in the chain can be executed one by one with different strategies (loop, auto remove, etc).

Example :

     package examples
     {
         import system.events.ActionEvent;
         import system.process.Action;
         import system.process.Chain;
         import system.process.Pause;
         
         import flash.display.Sprite;
         
         [SWF(width="740", height="480", frameRate="24", backgroundColor="#666666")]
         
         public class ChainBasicExample extends Sprite
         {
             public function ChainBasicExample()
             {
                 var chain:Chain = new Chain() ;
                 
                 chain.addEventListener( ActionEvent.FINISH   , debug ) ;
                 chain.addEventListener( ActionEvent.PROGRESS , debug ) ;
                 chain.addEventListener( ActionEvent.START    , debug ) ;
                 
                 chain.finishIt.connect( finish ) ;
                 chain.progressIt.connect( progress ) ;
                 chain.startIt.connect( start  ) ;
                 
                 chain.addAction( new Pause(1) ) ;
                 chain.addAction( new Pause(1) ) ;
                 chain.addAction( new Pause(1) ) ;
                 
                 chain.run() ;
             }
             
             public function debug( e:ActionEvent ):void
             {
                 trace( "debug " + e.type ) ;
             }
             
             public function finish( action:Action ):void
             {
                 trace( "finish" ) ;
             }
             
             public function progress( action:Action ):void
             {
                 trace( "progress : " + (action as Chain).current ) ;
             }
             
             public function start( action:Action ):void
             {
                 trace( "start" ) ;
             }
         }
     }
     

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