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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2019/01/08 00:27:48 UTC

[GitHub] srkukarni opened a new pull request #3324: Add Windowfunction interface to functions api

srkukarni opened a new pull request #3324: Add Windowfunction interface to functions api
URL: https://github.com/apache/pulsar/pull/3324
 
 
   ### Motivation
   Currently we support windowed functions but these functions have to be java.util.Function. However simple java.util.Function cannot fetch any kind of meta data about the function since it lacks any kind of context handle. This pr introduces the WindowFunction as anologous to the Function interface which exposes the Context interface.
   
   ### Modifications
   
   Describe the modifications you've done.
   
   ### Result
   
   After your change, what will change.
   

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