public interface ClientService
ClientService allows you to query connected
Clients and attach/detach
ClientListeners to listen to connection events.
All the methods are thread-safe.
Returns all connected clients to this member.
- all connected clients to this member
Adds a ClientListener. When a ClientListener is added more than once, it will receive duplicate events.
Removes a ClientListener. Can safely be called with a non existing ID, or when the ClientListener already is removed.
registrationId- ID of the ClientListener registration
trueif registration is removed,
NullPointerException- if registration ID is