[jira] [Closed] (FLINK-12026) Remove the `xxxInternal` method from TableImpl

["sunjincheng (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-12026?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

sunjincheng closed FLINK-12026.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 1.9.0

Fixed in master: c96a4d7afe379a291cc538ca36af896df8dc2127

> Remove the `xxxInternal` method from TableImpl
> ----------------------------------------------
>
>                 Key: FLINK-12026
>                 URL: https://issues.apache.org/jira/browse/FLINK-12026
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / API
>    Affects Versions: 1.9.0
>            Reporter: sunjincheng
>            Assignee: sunjincheng
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.9.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> At present, each operator of TableImpl has an internal method of `xxxInternal`, and `xxxInternal` is a temp method. I think it can be removed at present to further simplify the code. Such as:
> From:
> {code:java}
> override def select(fields: String): Table = {
>   select(ExpressionParser.parseExpressionList(fields): _*)
> }
> override def select(fields: Expression*): Table = {
>   selectInternal(fields.map(tableImpl.expressionBridge.bridge))
> }
> private def selectInternal(fields: Seq[PlannerExpression]): Table = {
> ...
> // implementtition logic
> ...
> }{code}
> To:
> {code:java}
> override def select(fields: String): Table = { 
> select(ExpressionParser.parseExpressionList(fields): _*) 
> } 
> override def select(fields: Expression*): Table = {
> ... 
> // implementtition logic 
> ... 
> }{code}
>  
> I think the implementtition logic can move into `select(fields: Expression*)`.  What do you think? [~dawidwys] [~hequn8128]



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