Reference Manual 3.9-SNAPSHOT

Distributed Events Cluster Events Listening for Clients

The Client Listener is used by the Hazelcast cluster members. It notifies the cluster members when a client is connected to or disconnected from the cluster.

To write a client listener class, you implement the ClientListener interface and its methods clientConnected and clientDisconnected, which are invoked when a client is connected to or disconnected from the cluster. You can add your client listener as shown below.

hazelcast.getClientService().addClientListener(SampleClientListener);

The following is the equivalent declarative configuration.

<listeners>
   <listener>
      com.your-package.SampleClientListener
   </listener>
</listeners>

The following is the equivalent configuration in the Spring context.

<hz:listeners>
   <hz:listener class-name="com.your-package.SampleClientListener"/>
   <hz:listener implementation="com.your-package.SampleClientListener"/>
</hz:listeners>



image NOTE: You can also add event listeners to a Hazelcast client. Please refer to Client Listenerconfig for the related information.