flink-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From sunjincheng121 <...@git.apache.org>
Subject [GitHub] flink pull request #4200: [FLINK-7014] Expose isDeterministic interface to S...
Date Wed, 28 Jun 2017 02:29:27 GMT
Github user sunjincheng121 commented on a diff in the pull request:

    https://github.com/apache/flink/pull/4200#discussion_r124439457
  
    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/UserDefinedFunction.scala
---
    @@ -40,6 +40,12 @@ abstract class UserDefinedFunction extends Serializable {
       @throws(classOf[Exception])
       def close(): Unit = {}
     
    +  /**
    +    * @return true iff a call to this function is guaranteed to always return
    +    *         the same result given the same parameters; true is assumed by default
    +    */
    +  def isDeterministic: Boolean = true
    --- End diff --
    
    I suggest explain when user need to overwrite the method, what the impact if not overwrite
the method. 


---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastructure@apache.org or file a JIRA ticket
with INFRA.
---

Mime
View raw message