zhangmeng916 commented on a change in pull request #1154:
URL: https://github.com/apache/helix/pull/1154#discussion_r457520882
##########
File path:
helix-core/src/main/java/org/apache/helix/spectator/RoutingTableProvider.java
##########
@@ -403,16 +403,55 @@ public RoutingTableSnapshot
getRoutingTableSnapshot(PropertyType propertyType, S
return snapshots;
}
+
/**
* Add RoutingTableChangeListener with user defined context
* @param routingTableChangeListener
* @param context user defined context
*/
public void addRoutingTableChangeListener(
final RoutingTableChangeListener routingTableChangeListener, Object
context) {
+ addRoutingTableChangeListener(routingTableChangeListener, context, false);
+ }
+
+ /**
+ * Add RoutingTableChangeListener with user defined context
+ * @param routingTableChangeListener
+ * @param context user defined context
+ * @param doInit whether to trigger the initial callback during adding
listener
+ */
+ public void addRoutingTableChangeListener(
Review comment:
@dasahcc had some concerns that if users are not expecting an empty
snapshot, and the initial callback provides them such, they may not have a way
to handle it yet.
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