Gets the current outstanding Future for the next Spool value.
Gets the current outstanding Future for the next Spool value. The returned Spool will see all future values passed to offer(), up until close() is called. Previous values passed to offer() will not be seen in the Spool.
Closes this SpoolSource, which also terminates the generated Spool.
Closes this SpoolSource, which also terminates the generated Spool. This method is idempotent.
Puts a value into the spool.
Puts a value into the spool. Unless this SpoolSource has been closed, the current Future[Spool[A]] value will be fulfilled with a Spool that contains the provided value. If the SpoolSource has been closed, then this value is ignored. If multiple threads call offer simultaneously, the operation is thread-safe but the resulting order of values in the spool is non-deterministic.
Raises exception on this SpoolSource, which also terminates the generated Spool.
Raises exception on this SpoolSource, which also terminates the generated Spool. This method is idempotent.
A SpoolSource is a simple object for creating and populating a Spool-chain. apply() returns a Future[Spool] that is populated by calls to offer(). This class is thread-safe.