"Roo.dd.DragDrop",
"Roo.util.Observable"
],
+ "childClasses" : [],
"desc" : "This class provides a container DD instance that proxies for multiple child node sources.<br />\nBy default, this class requires that draggable child nodes are registered with {@link Roo.dd.Registry}.",
"isSingleton" : false,
"isStatic" : false,