!
Broker
!!
Broker
%
Duration
*
Duration StorageUnit
**::
Spool Syntax1
*::
Spool Syntax
+
StorageUnit TimeLike
++
Spool
++=
BoundedStack RingBuffer
+=
ConcurrentBijection ConcurrentMultiMap BoundedStack RingBuffer
-
StorageUnit Time TimeLike
-=
ConcurrentBijection
/
Duration StorageUnit
?
Broker Offer
??
Broker Offer