Function<VRObject,Boolean>
@FunctionalInterface public interface Filter extends Function<VRObject,Boolean>
static Filter
isActive()
isActiveOrOwned(Client c)
isOwned(Client c)
removeOfflineClients()
andThen, apply, compose
static Filter isActive()
static Filter isOwned(Client c)
static Filter isActiveOrOwned(Client c)
static Filter removeOfflineClients()