[ https://issues.apache.org/jira/browse/SPARK-27323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dongjoon Hyun resolved SPARK-27323. ----------------------------------- Resolution: Fixed Fix Version/s: 3.0.0 This is resolved via https://github.com/apache/spark/pull/24241 > Use Single-Abstract-Method support in Scala 2.12 to simplify code > ----------------------------------------------------------------- > > Key: SPARK-27323 > URL: https://issues.apache.org/jira/browse/SPARK-27323 > Project: Spark > Issue Type: Improvement > Components: GraphX, Spark Core, SQL, Structured Streaming > Affects Versions: 3.0.0 > Reporter: Sean Owen > Assignee: Sean Owen > Priority: Minor > Fix For: 3.0.0 > > > Scala 2.12 supports Single Abstract Method (SAM) syntax like Java 8. Using > this would lightly simplify a lot of code where we define an anonymous inner > class. E.g. > {code} > private[sql] val ordering = new Ordering[InternalType] { > override def compare(x: Array[Byte], y: Array[Byte]): Int = { > TypeUtils.compareBinary(x, y) > } > } > {code} > becomes: > {code} > private[sql] val ordering = (x: Array[Byte], y: Array[Byte]) => > TypeUtils.compareBinary(x, y) > {code} > There's a small improvement to readability, and probably a tiny benefit at > runtime as these become lambdas in the JVM, not inner classes that have to be > compiled and instantiated. (There's also a very small reduction in the chance > that those inner classes are accidentally holding references to things we > don't want them to.) -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org