Github user tdas commented on a diff in the pull request:
https://github.com/apache/spark/pull/1395#discussion_r15613724
--- Diff:
streaming/src/main/scala/org/apache/spark/streaming/api/java/JavaPairDStream.scala
---
@@ -659,6 +659,52 @@ class JavaPairDStream[K, V](val dstream: DStream[(K,
V)])(
}
/**
+ * Return a new DStream by applying 'full outer join' between RDDs of
`this` DStream and
+ * `other` DStream. Hash partitioning is used to generate the RDDs with
Spark's default
+ * number of partitions.
+ */
+ def fullOuterJoin[W](other: JavaPairDStream[K, W])
+ : JavaPairDStream[K, (Optional[V], Optional[W])] = {
--- End diff --
Aaargh. My visual estimation failed. :(
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