Merge pull request #278 from MLnick/java-python-tostring

Add toString to Java RDD, and __repr__ to Python RDD

Addresses [SPARK-992](https://spark-project.atlassian.net/browse/SPARK-992)

core/src/main/scala/org/apache/spark/api/java/JavaRDD.scala

@@ -125,6 +125,8 @@ JavaRDDLike[T, JavaRDD[T]] {
    */
   def subtract(other: JavaRDD[T], p: Partitioner): JavaRDD[T] =
     wrapRDD(rdd.subtract(other, p))
+
+  override def toString = rdd.toString
 }
 
 object JavaRDD {

python/pyspark/rdd.py

@@ -54,6 +54,9 @@ class RDD(object):
         self.ctx = ctx
         self._jrdd_deserializer = jrdd_deserializer
 
+    def __repr__(self):
+        return self._jrdd.toString()
+
     @property
     def context(self):
         """