Interface ActionQueueCheckpoint

@Incubating(since="8.0",
            group="action-queue")
public interface ActionQueueCheckpoint

An opaque checkpoint of an ActionQueue's state before speculative flush preparation.

A checkpoint belongs to the queue instance which created it. Callers may retain it only long enough to either continue with execution or restore that queue after deciding that the speculative flush is unnecessary.

Since:

8.0