desaikomal commented on code in PR #2339:
URL: https://github.com/apache/helix/pull/2339#discussion_r1080668742
##########
meta-client/src/main/java/org/apache/helix/metaclient/impl/zk/ZkMetaClient.java:
##########
@@ -236,6 +239,10 @@ public ConnectState getClientConnectionState() {
@Override
public boolean subscribeDataChange(String key, DataChangeListener listener,
boolean skipWatchingNonExistNode, boolean persistListener) {
+ if (!persistListener) {
+ throw new NotImplementedException("Non-persist (one-time) listener is
not supported in ZkMetaClient.");
+ }
+ _zkClient.subscribeDataChanges(key, new DataListenerConverter(listener));
Review Comment:
Argh.. we have already additional code.
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