Spectator registry to use for reporting metrics.
Function to create a new index from the set of items.
Returns the timestamp for when the current index was built.
Returns the number of pending updates.
Rebuild the index to include all of the pending updates that have accumulated.
Rebuild the index to include all of the pending updates that have accumulated. Any expired items will also be removed.
Update the index with the given items.
Update the index with the given items.
(Since version ) see corresponding Javadoc for more information.
Mutable tag index that batches updates and atomically swaps in a new index in the background at a configured interval.