Xiangrui Meng 061bb01d9b [SPARK-25248][CORE] Audit barrier Scala APIs for 2.4 ... ## What changes were proposed in this pull request? I made one pass over barrier APIs added to Spark 2.4 and updates some scopes and docs. I will update Python docs once Scala doc was reviewed. One major issue is that `BarrierTaskContext` implements `TaskContextImpl` that exposes some public methods. And internally there were several direct references to `TaskContextImpl` methods instead of `TaskContext`. This PR moved some methods from `TaskContextImpl` to `TaskContext`, remaining package private, and used delegate methods to avoid inheriting `TaskContextImp` and exposing unnecessary APIs. TODOs: - [x] scala doc - [x] python doc (#22261 ). Closes #22240 from mengxr/SPARK-25248. Authored-by: Xiangrui Meng <meng@databricks.com> Signed-off-by: Xiangrui Meng <meng@databricks.com>		2018-09-04 09:55:53 -07:00
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src	[SPARK-25248][CORE] Audit barrier Scala APIs for 2.4	2018-09-04 09:55:53 -07:00
pom.xml	[SPARK-23654][BUILD] remove jets3t as a dependency of spark	2018-08-16 12:34:23 -07:00