DefaultBigSegmentStoreFactory implements our standard logic for optionally creating a BigSegmentStore.

DefaultBigSegmentSynchronizerFactory creates the default implementation of BigSegmentSynchronizer.

NewNullBigSegmentStore returns a no-op stub implementation.

UpdatesSummary describes a batch of updates that the synchronizer has applied.

BigSegmentStore is the interface for interacting with an external big segment store.

BigSegmentSynchronizer synchronizes big segment state for a given environment.

BigSegmentStoreFactory creates an implementation of BigSegmentStore, if the configuration implies that we should have one; if not, it returns nil.

BigSegmentSynchronizerFactory creates an implementation of BigSegmentSynchronizer.