티스토리 뷰

공부

[scala] javaMap to scalaMap

승가비 2022. 8. 31. 15:50
728x90
import scala.collection.JavaConverters._

// asScala creates mutable Scala Map
// toMap after asScala creates immutable Map
val scalaImmutableMap = javaMap.asScala.toMap

https://stackoverflow.com/questions/38235908/converting-a-java-map-into-a-scala-immutable-map-in-java-code

 

Converting a Java map into a Scala immutable map in Java code

I have a Java class that needs to stay in Java for a variety of reasons. It is calling a method on a class implemented with a Scala trait and a Scala implementation that needs a Scala immutable map...

stackoverflow.com

    def config(map: java.util.Map[String, Any]): Builder = synchronized {
      config(map.asScala.toMap)
    }

https://github.com/apache/spark/pull/37478/files#diff-ce6c8278bd6c89dc55a7ac262751c18cd6f3da3bf336b64202d46b2a7954c881R883-R885

 

[SPARK-40163][SQL] feat: SparkSession.config(Map) by seunggabi · Pull Request #37478 · apache/spark

https://issues.apache.org/jira/browse/SPARK-40163 What changes were proposed in this pull request? as-is private fun config(builder: SparkSession.Builder): SparkSession.Builder { va...

github.com

https://stackoverflow.com/questions/16918956/convert-java-map-to-scala-map

 

Convert Java Map to Scala Map

I have a java map: java.util.Map<SomeObject, java.util.Collection<OtherObject>> and I would like to convert it to the scala map: Map[SomeObject, Set[OtherObject]] I have used mapAsScal...

stackoverflow.com

 

728x90
저작자표시 비영리

'공부' 카테고리의 다른 글

[github] actions trigger push tags  (0) 2022.08.31
[java] array to list  (0) 2022.08.31
[Scala] foreach Map  (0) 2022.08.31
[MySQL] INSERT ... ON DUPLICATE KEY UPDATE ...  (0) 2022.08.31
[python] if some_string: (some_string is empty)  (0) 2022.08.31
댓글