Mediator Service Requests

Retrieve one's own address card
    public static DataRequest whoami();     Service:   DataRequest.MEDIATOR
    Result:   IDCard
    Arguments:   none

Retrieve all current users' address cards
    public static DataRequest allUsers();     Service:   DataRequest.MEDIATOR
    Result:   java.util.Hashtable
    Arguments:   none

Retrieve all current delegates' address cards
    public static DataRequest allAgents();     Service:   DataRequest.MEDIATOR
    Result:   java.util.Vector
    Arguments:   none

Retrieve the address card of the specified user
    public static DataRequest userID(String name);     Service:   DataRequest.MEDIATOR
    Result:   IDCard
    Arguments:   String name