How to convert a case-class-based RDD into a DataFrame?

Question

The Spark documentation shows how to create a DataFrame from an RDD, using Scala case classes to infer a schema. I am trying to reproduce this concept using sqlContext

Answer 1

All you need is just

val dogDF = sqlContext.createDataFrame(dogRDD)

Second parameter is part of Java API and expects you class follows java beans convention (getters/setters). Your case class doesn't follow this convention, so no property is detected, that leads to empty DataFrame with no columns.