org.elkoserver.server.context
Interface UserWatcher

public interface UserWatcher

Interface implemented by objects that wish to be notified when users arrive in or depart from context.

This notification can be arranged by calling the registerUserWatcher() method on the Context in which one has an interest in the comings and goings of users.

Method Summary

void	noteUserArrival(User who) Do whatever you want when somebody arrives.
void	noteUserDeparture(User who) Do whatever you want when somebody leaves.

Method Detail

noteUserArrival

void noteUserArrival(User who)

Do whatever you want when somebody arrives.

Whenever a user enters a context, the server will call this method on all objects that have registered an interest in that context via the context's registerUserWatcher() method.

Parameters:

who - The user who arrived.

noteUserDeparture

void noteUserDeparture(User who)

Do whatever you want when somebody leaves.

Whenever a user exits a context, the server will call this method on all objects that have registered an interest in that context via the context's registerUserWatcher() method.

Parameters:

who - The user who departed.