[GitHub] helix pull request #159: Improvements to Helix's Callback handling.

[kishoreg]

Github user kishoreg commented on a diff in the pull request:

    https://github.com/apache/helix/pull/159#discussion_r177260701
  
    --- Diff: 
helix-core/src/main/java/org/apache/helix/manager/zk/CallbackHandler.java ---
    @@ -153,7 +195,12 @@ private void parseListenerProperties() {
         BatchMode batchMode = 
_listener.getClass().getAnnotation(BatchMode.class);
         PreFetch preFetch = _listener.getClass().getAnnotation(PreFetch.class);
     
    -    String asyncBatchModeEnabled = 
System.getProperty("isAsyncBatchModeEnabled");
    +    String asyncBatchModeEnabled = 
System.getProperty("helix.callbackhandler.isAsyncBatchModeEnabled");
    --- End diff --
    
    can we make this backward compatible?


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