package test
     {
         import org.as3coreaddendum.system.IPriority;
     
         public class TestPriority extends EventDispatcher implements IPriority
         {
             private var _name:String;
             private var _priority:int;
     
             public function get priority(): int { return _priority; }
     
             public function set priority(value : int) : void
             {
                 _priority = value;
                 dispatchEvent(new PriorityEvent(PriorityEvent.CHANGED, _priority));
             }
     
             public function TestPriority(name:String, priority:int)
             {
                 _name = name;
                 _priority = priority;
             }
     
             public function toString(): String
             {
                 return "[TestPriority " + _name + "]";
             }
         }
     }
     

     import org.as3collections.ISortedQueue;
     import org.as3collections.queues.PriorityQueue;
     import test.TestPriority;
     
     var queue1:ISortedQueue = new PriorityQueue();
     
     var o1:TestPriority = new TestPriority("o1", 1);
     var o2:TestPriority = new TestPriority("o2", 2);
     var o3:TestPriority = new TestPriority("o3", 3);
     var o4:TestPriority = new TestPriority("o4", 4);
     
     queue1.offer(o2)            // true
     queue1                      // [[TestPriority o2]]
     queue1.size()               // 1
     
     queue1.offer(o3)            // true
     queue1                      // [[TestPriority o3],[TestPriority o2]]
     queue1.size()               // 2
     
     queue1.offer(o2)            // true
     queue1                      // [[TestPriority o3],[TestPriority o2],[TestPriority o2]]
     
     queue1.offer(o1)            // true
     queue1                      // [[TestPriority o3],[TestPriority o2],[TestPriority o2],[TestPriority o1]]
     
     queue1.offer(o4)            // true
     queue1                      // [[TestPriority o4],[TestPriority o3],[TestPriority o2],[TestPriority o2],[TestPriority o1]]
     
     queue1.offer(1)             // false
     queue1                      // [[TestPriority o4],[TestPriority o3],[TestPriority o2],[TestPriority o2],[TestPriority o1]]
     
     queue1.add(1)               // ClassCastError: The element must implement the 'org.as3coreaddendum.system.IPriority' interface. Type received: int