abstract fun softLockReserve(lockId: UUID, stateRefs: NonEmptySet<StateRef>): Unit
Reserve a set of StateRef for a given UUID unique identifier. Typically, the unique identifier will refer to a FlowLogic.runId's UUID associated with an in-flight flow. In this case if the flow terminates the locks will automatically be freed, even if there is an error. However, the user can specify their own UUID and manage this manually, possibly across the lifetime of multiple flows, or from other thread contexts e.g. CordaService instances. In the case of coin selection, soft locks are automatically taken upon gathering relevant unconsumed input refs.
StatesNotAvailableException - when not possible to soft-lock all of requested StateRef.