org.apache.solr.common.cloud

接口 LiveNodesListener

public interface LiveNodesListener

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

方法概要

限定符和类型	方法和说明
boolean	onChange(SortedSet<String> oldLiveNodes, SortedSet<String> newLiveNodes) Called when a change in the live nodes set occurs.

方法详细资料

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

参数:

oldLiveNodes - set of live nodes before the change

newLiveNodes - set of live nodes after the change

返回:

true if the listener should be removed