One approach is to iterate over the znode children and add data watcher to it.
In the below example, I defined one single watcher instance which will handle
the events and based on path it can act upon.
for example:
String parentPath = "/myparentnode"; // parent node which holds the children
Watcher w = new Watcher(){
@Override
public void process(WatchedEvent watchEvent) {
//......write logic based on the znode child path
}
}
// here it would be good to handle the KeeperExceptions
// according to the business logic
for(String child : children){
zk.getData(parentpath + "/" + path, w);
}
-Rakesh
-----Original Message-----
From: Kah-Chan Low [mailto:[email protected]]
Sent: 16 January 2014 21:14
To: [email protected]
Subject: How to monitor changes in children's data
I am a novice.
I have a Znode and I want to get notified whenever anyone of the Znode's
children has a change of data.
What kind of watch should I place on the Znode?
Thanks!
