srowen commented on a change in pull request #24241:
[SPARK-27323][CORE][SQL][STREAMING] Use Single-Abstract-Method support in Scala
2.12 to simplify code
URL: https://github.com/apache/spark/pull/24241#discussion_r270521108
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File path: core/src/main/scala/org/apache/spark/BarrierCoordinator.scala
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@@ -202,10 +202,8 @@ private[spark] class BarrierCoordinator(
case request @ RequestToSync(numTasks, stageId, stageAttemptId, _, _) =>
// Get or init the ContextBarrierState correspond to the stage attempt.
val barrierId = ContextBarrierId(stageId, stageAttemptId)
- states.computeIfAbsent(barrierId, new Function[ContextBarrierId,
ContextBarrierState] {
- override def apply(key: ContextBarrierId): ContextBarrierState =
- new ContextBarrierState(key, numTasks)
- })
+ states.computeIfAbsent(barrierId,
Review comment:
90% of the changes are like this, converting an anonymous inner class to a
SAM expression.
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