code: private void sendEvent(Node node, NodeEventType type) {
  		NodeEvent event = new NodeEvent(node, type);
  		for (NodeEventHandler handler : handlers) {
  			handler.handle(event);
  		}
  	}
docs: Sends the event to all the handlers.
  
  @param node
  - the event node.
  @param type
  - the event type.