@param as_type Type of event to dispatch @param handler The handler where to start the dispatch. Use {@link #getRootHandler()} to redispatch the new event to all handlers in the tree. @throws HandlerException A wrapper exception of any unhandled exception thrown by <code>handler</code>
Synchronously redispatch the current event as a new {@link EventType} on the provided handler and it's children. <p> Note: the <code>redispatch()</code> will complete before children of the current handler have had the current event dispatched, see {@link #delegate()}.