diff options
Diffstat (limited to 'core/src/main/scala/org/apache/spark/api/java/JavaPairRDD.scala')
| -rw-r--r-- | core/src/main/scala/org/apache/spark/api/java/JavaPairRDD.scala | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/core/src/main/scala/org/apache/spark/api/java/JavaPairRDD.scala b/core/src/main/scala/org/apache/spark/api/java/JavaPairRDD.scala index 857626fe84..0ff428c120 100644 --- a/core/src/main/scala/org/apache/spark/api/java/JavaPairRDD.scala +++ b/core/src/main/scala/org/apache/spark/api/java/JavaPairRDD.scala @@ -126,6 +126,16 @@ class JavaPairRDD[K, V](val rdd: RDD[(K, V)]) def union(other: JavaPairRDD[K, V]): JavaPairRDD[K, V] = new JavaPairRDD[K, V](rdd.union(other.rdd)) + /** + * Return the intersection of this RDD and another one. The output will not contain any duplicate + * elements, even if the input RDDs did. + * + * Note that this method performs a shuffle internally. + */ + def intersection(other: JavaPairRDD[K, V]): JavaPairRDD[K, V] = + new JavaPairRDD[K, V](rdd.intersection(other.rdd)) + + // first() has to be overridden here so that the generated method has the signature // 'public scala.Tuple2 first()'; if the trait's definition is used, // then the method has the signature 'public java.lang.Object first()', |