poll
abstract fun <A> pollUntilNonNull(pollName: String, pollInterval: Duration = DEFAULT_POLL_INTERVAL, warnCount: Int = DEFAULT_WARN_COUNT, check: () -> A?): CordaFuture<A>
Polls a function until it returns a non-null value. Note that there is no timeout on the polling.
Return
A future that completes with the non-null value check has returned.
Parameters
poll
A description of what is being polled.
poll
The interval of polling.
warn
The number of polls after the Driver gives a warning.
check
The function being polled.