[jira] [Commented] (FLINK-14835) Make `org.apache.flink.configuration.Configuration` support method chaining

["Jark Wu (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-14835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16976495#comment-16976495 ] 

Jark Wu commented on FLINK-14835:
---------------------------------

Personally, I'm +1 on this feature and it is backward compatible, but I'm not sure whether it will break japicmp.

> Make `org.apache.flink.configuration.Configuration` support method chaining
> ---------------------------------------------------------------------------
>
>                 Key: FLINK-14835
>                 URL: https://issues.apache.org/jira/browse/FLINK-14835
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / Configuration
>    Affects Versions: 1.9.1
>            Reporter: Victor Wong
>            Priority: Major
>
> *Goal:*
> To make the following code examples work in production, which is very handy for users to set a couple of configurations: 
> {code:java}
> // instantiate table environment
> TableEnvironment tEnv = ...tEnv.getConfig()        // access high-level configuration
>   .getConfiguration()   // set low-level key-value options
>   .setString("table.exec.mini-batch.enabled", "true")  // enable mini-batch optimization
>   .setString("table.exec.mini-batch.allow-latency", "5 s") // use 5 seconds to buffer input records
>   .setString("table.exec.mini-batch.size", "5000"); // the maximum number of records can be buffered by each aggregate operator task
> {code}
>  
> *Suggestion:*
> Currently, the return type of `setXXX` method is "void", we can make it return `Configuration` itself to support method chaining.



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