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https://issues.apache.org/jira/browse/SEDONA-25?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17514930#comment-17514930
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Jia Yu commented on SEDONA-25:
------------------------------

[~harjitdotsingh] 

See this example:

import scala.collection.JavaConversions._

var joinResultDf = Adapter.toDf(joinResultPairRDD, leftRdd.fieldNames, 
rightRdd.fieldNames, sparkSession)

 

leftRdd.fieldNames is a Java List but it is not the same type of Scala Seq. So, 
to use it as the input, we have to call the Scala JavaConversions.

> Change Scala Seq type in Adapter
> --------------------------------
>
>                 Key: SEDONA-25
>                 URL: https://issues.apache.org/jira/browse/SEDONA-25
>             Project: Apache Sedona
>          Issue Type: Task
>            Reporter: Jia Yu
>            Assignee: Jia Yu
>            Priority: Major
>
> Currently, the adapter function requires Seq type list for input fieldNames. 
> This leads to lots of confusion in Scala and Java users: 
> https://github.com/apache/incubator-sedona/blob/master/sql/src/main/scala/org/apache/sedona/sql/utils/Adapter.scala#L134
>  
> To fix that, we'd better use List or Java list as the type.



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