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public interface ITopic<E>
Hazelcast provides distribution mechanism for publishing messages that are delivered to multiple subscribers which is also known as publish/subscribe (pub/sub) messaging model. Publish and subscriptions are cluster-wide. When a member subscribes for a topic, it is actually registering for messages published by any member in the cluster, including the new members joined after you added the listener. Messages are ordered, meaning, listeners(subscribers) will process the messages in the order they are actually published. If cluster member M publishes messages m1, m2, m3...mn to a topic T, then Hazelcast makes sure that all of the subscribers of topic T will receive and process m1, m2, m3...mn in order.
Method Summary | |
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String |
addMessageListener(MessageListener<E> listener)
Subscribes to this topic. |
LocalTopicStats |
getLocalTopicStats()
Returns statistics of this topic,like total number of publishes/receives |
String |
getName()
Returns the name of this ITopic instance |
void |
publish(E message)
Publishes the message to all subscribers of this topic |
boolean |
removeMessageListener(String registrationId)
Stops receiving messages for the given message listener. |
Methods inherited from interface com.hazelcast.core.DistributedObject |
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destroy, getId, getPartitionKey, getServiceName |
Method Detail |
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String getName()
getName
in interface DistributedObject
void publish(E message)
message
- String addMessageListener(MessageListener<E> listener)
listener
-
boolean removeMessageListener(String registrationId)
registrationId
- Id of listener registration.
LocalTopicStats getLocalTopicStats()
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