jberragan commented on code in PR #62:
URL: 
https://github.com/apache/cassandra-analytics/pull/62#discussion_r1676203192


##########
cassandra-analytics-common/src/main/java/org/apache/cassandra/spark/reader/EmptyStreamScanner.java:
##########
@@ -24,13 +24,13 @@ public class EmptyStreamScanner implements 
StreamScanner<Rid>
     public static final EmptyStreamScanner INSTANCE = new EmptyStreamScanner();
 
     @Override
-    public Rid rid()
+    public Rid data()

Review Comment:
   I suggest you take a deeper look at `AbstractStreamScanner` and the work 
involved in refactoring to an `java.util.Iterator`, `hasNext()` has the 
expectation of being idempotent and this is not currently the case for 
`AbstractStreamScanner`. I am +1 on moving to `java.util.Iterator` but it 
should be handled as an independent PR so it can be reviewed carefully and 
tested outside of these changes.



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