public interface CollectionStateWatcher
ZkStateReader.registerCollectionStateWatcher(String, CollectionStateWatcher)and called whenever the collection state changes.
|Modifier and Type||Method and Description|
Called when the collection we are registered against has a change of state Note that, due to the way Zookeeper watchers are implemented, a single call may be the result of several state changes
boolean onStateChanged(Set<String> liveNodes, DocCollection collectionState)
liveNodes- the set of live nodes
collectionState- the new collection state (may be null if the collection has been deleted)