cometedgwt.auction.client
Interface StreamingService

All Known Implementing Classes:

StreamingServiceGWTClientImpl

public interface StreamingService

Method Summary

void	sendMessage(String topicName, com.google.gwt.json.client.JSONValue object) With this method clients can push JSON data on a named topic.
void	sendMessage(String topicName, String data) With this method clients can push String data on a named topic.
void	subScribeToEvent(String topicName, com.google.gwt.user.client.rpc.AsyncCallback callback) GWT clients use this method to subscribe to a named stream.

Method Detail

sendMessage

void sendMessage(String topicName,
                 String data)

With this method clients can push String data on a named topic.

Parameters:

topicName -

data -

sendMessage

void sendMessage(String topicName,
                 com.google.gwt.json.client.JSONValue object)

With this method clients can push JSON data on a named topic. For instance, to send an Object with a nested array of one element to the "topic" topic: JSONArray array = new JSONArray(); array.add(new JSONString("string value"); JSONObject object = new JSONObject(); object.put("array", array); StreamingServiceGWTClientImpl.getInstance().sendMessage("topic", container); The onSuccess method of the registered clients will be then called with an already parsed JSONObject. Because of a limit of the JSONParser, you can't send JSONArrays directly, but they must be encapsulated inside a container JSONObject (like in the example).

Parameters:

topicName -

data -

subScribeToEvent

void subScribeToEvent(String topicName,
                      com.google.gwt.user.client.rpc.AsyncCallback callback)

GWT clients use this method to subscribe to a named stream. They will receive events on the AsyncCallback passed as parameter.

Parameters:

topicName -

callback -