[Improvement][Registry] SubscribeListener support set scope #16985
Description
Search before asking
- I had searched in the issues and found no similar feature requirement.
Description
Right now, the SubscribeListener can only support subscribe all events which include children and itself event of the watched path.
Sometimes we only want to listen the children change, e.g. we subscribe the master nodes change we want to listen the /nodes/master/xx we don't care the /nodes/master itself, once we receive a event from /nodes/master will throw exception when deserialize the data.
Are you willing to submit a PR?
- Yes I am willing to submit a PR!
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