Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/813#discussion_r32103307
--- Diff:
flink-staging/flink-streaming/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/StreamExecutionEnvironment.scala
---
@@ -455,15 +455,22 @@ class StreamExecutionEnvironment(javaEnv: JavaEnv) {
*/
def getStreamGraph = javaEnv.getStreamGraph
+ /**
+ * Returns a "closure-cleaned" version of the given function. Cleans
only if closure cleaning
+ * is not disabled in the {@link
org.apache.flink.api.common.ExecutionConfig}
+ */
+ private[flink] def clean[F <: AnyRef](f: F): F = {
+ if (getConfig.isClosureCleanerEnabled) {
+ ClosureCleaner.clean(f, true)
+ } else {
+ ClosureCleaner.ensureSerializable(f)
+ }
+ f
+ }
--- End diff --
I will look into it. The problem is that the DataStream and all the other
classes don't have a reference to the Scala StreamExecutionEnvironment.
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