org.wicketstuff.push.cometd
Class CometdPushService

java.lang.Object
  org.wicketstuff.push.AbstractPushService
      org.wicketstuff.push.cometd.CometdPushService

All Implemented Interfaces:

org.wicketstuff.push.IPushService

public class CometdPushService
extends org.wicketstuff.push.AbstractPushService

Cometd based implementation of IPushService.

This implementation relies on cometd for updating the page, but actually uses regular cometd events, that will trigger a Wicket AJAX call to get the page actually refreshed using regular Wicket AJAX mechanisms.

This mean that each time an event is published, a new connection is made to the server to get the actual page update performed by the IPushEventHandler.

Author:

Xavier Hanin, Rodolfo Hansen, Sebastian Thomschke

get

public static CometdPushService get()

get

public static CometdPushService get(WebApplication application)

getRef

public static org.wicketstuff.push.IPushServiceRef<CometdPushService> getRef()

Returns:

a serializable service reference

installNode

public <EventType> CometdPushNode<EventType> installNode(Component component,
                                                         org.wicketstuff.push.IPushEventHandler<EventType> handler)

isConnected

public boolean isConnected(org.wicketstuff.push.IPushNode<?> node)

publish

public <EventType> void publish(org.wicketstuff.push.IPushChannel<EventType> channel,
                                EventType event)

publish

public <EventType> void publish(org.wicketstuff.push.IPushNode<EventType> node,
                                EventType event)

publishJavascript

public <EventType> void publishJavascript(CometdPushNode<EventType> node,
                                          String javascript)

Directly sends JavaScript code to the node via a cometd channel without an additional Wicket AJAX request roundtrip.

publishJavascript

public <EventType> void publishJavascript(org.wicketstuff.push.PushChannel<EventType> channel,
                                          String javascript)

Directly sends JavaScript code to all nodes listeing to the given push channel via a cometd channel without an additional Wicket AJAX request roundtrip.

uninstallNode

public void uninstallNode(Component component,
                          org.wicketstuff.push.IPushNode<?> node)