```
public interface CollectionPropsWatcher
```
Callback registered with ZkStateReader.registerCollectionPropsWatcher(String, CollectionPropsWatcher) and called whenever the collection properties change.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`onStateChanged(Map<String,String> collectionProperties)`	Called when the collection properties 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

Interface CollectionPropsWatcher