You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Tathagata Das (JIRA)" <ji...@apache.org> on 2015/06/01 23:14:18 UTC
[jira] [Commented] (SPARK-4557) Spark Streaming' foreachRDD method
should accept a VoidFunction<...>, not a Function<..., Void>
[ https://issues.apache.org/jira/browse/SPARK-4557?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14568009#comment-14568009 ]
Tathagata Das commented on SPARK-4557:
--------------------------------------
I hadnt seen this JIRA. This would be good to fix. And a nice starter JIRA. The solution would be to implement the new interface with VoidFunction, and deprecate the older one.
> Spark Streaming' foreachRDD method should accept a VoidFunction<...>, not a Function<..., Void>
> -----------------------------------------------------------------------------------------------
>
> Key: SPARK-4557
> URL: https://issues.apache.org/jira/browse/SPARK-4557
> Project: Spark
> Issue Type: Improvement
> Components: Streaming
> Affects Versions: 1.1.0
> Reporter: Alexis Seigneurin
> Priority: Minor
>
> In *Java*, using Spark Streaming's foreachRDD function is quite verbose. You have to write:
> {code:java}
> .foreachRDD(items -> {
> ...;
> return null;
> });
> {code}
> Instead of:
> {code:java}
> .foreachRDD(items -> ...);
> {code}
> This is because the foreachRDD method accepts a Function<JavaRDD<...>, Void> instead of a VoidFunction<JavaRDD<...>>. This would make sense to change it to a VoidFunction as, in Spark's API, the foreach method already accepts a VoidFunction.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org