| org.directwebremoting.Hub
All known Subclasses: org.directwebremoting.impl.DefaultHub,
| Hub | | public interface Hub (Code) | | A server-side hub that can publish data across reverse ajax and sync with
a number of other hubs, including: JMS, the OpenAjax Alliance hub, and
potentially others.
author:
Joe Walker [joe at getahead dot ltd dot uk] |
| Method Summary | |
| void | publish(String topicName, Object message)
Publish some data to a certain topic. | | void | subscribe(String topicName, MessageListener listener)
Called to create a subscription so that future publishes to a similarly
named topic alert the MessageListener that a publish has happened.
Warning
Currently the topic is a simple string pattern match. | | boolean | unsubscribe(String topicName, MessageListener listener)
|
| publish | | void publish(String topicName, Object message)(Code) | | Publish some data to a certain topic.
Parameters:
topicName - The topic to subscribe to.
Parameters:
message - The data to publish |
| subscribe | | void subscribe(String topicName, MessageListener listener)(Code) | | Called to create a subscription so that future publishes to a similarly
named topic alert the MessageListener that a publish has happened.
Warning
Currently the topic is a simple string pattern match. This more closely
resembles JMS rather than the OpenAjax hub because we're taking the
simplistic approach for now. I'm sure there will be some nasty problems
that fall out of this.
The OpenAjax hub allows subscriber data that is passed back to the
subscriber when the event happens. Since listeners are an ideal place for
this data it isn't supported here. The OAA hub also allows for filters,
but I'm thinking that this can be easily supported by the listener. What
am I missing?
Parameters:
topicName - The topic to subscribe to.
Parameters:
listener - The object to notify of matching calls to publish() |
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