public void sendToUserDirect(String topicURI, Object event, String user) {
		sendToUsersDirect(topicURI, event, Collections.singleton(user));
	}
public void sendToUserDirect ( String topicURI , Object event , String user ) { sendToUsersDirect ( topicURI , event , Collections . singleton ( user ) ) ; }
Send an EventMessage directly to the client specified with the user parameter. If
there is no entry in the {@link SimpUserRegistry} for this user nothing happens.
<p>
In contrast to {@link #sendToUser(String, Object, String)} this method does not
check if the receiver is subscribed to the destination. The
{@link SimpleBrokerMessageHandler} is not involved in sending this message.

@param topicURI the name of the topic
@param event the payload of the {@link EventMessage}
@param user receiver of the EVENT message