org.apache.solr.common.cloud

Interface LiveNodesListener

public interface LiveNodesListener

Listener that can be used with ZkStateReader.registerLiveNodesListener(LiveNodesListener) and called whenever the live nodes set changes.

Method Summary

Modifier and Type	Method and Description
boolean	onChange(SortedSet<String> oldLiveNodes, SortedSet<String> newLiveNodes) Called when a change in the live nodes set occurs.

Method Detail

onChange

boolean onChange(SortedSet<String> oldLiveNodes,
                 SortedSet<String> newLiveNodes)

Called when a change in the live nodes set occurs. Note that, due to the way Zookeeper watchers are implemented, a single call may be the result of several state changes

Parameters:

oldLiveNodes - set of live nodes before the change

newLiveNodes - set of live nodes after the change

Returns:

true if the listener should be removed