RDD join: composite keys

[Sameer Tilak]

Hi everyone,
Is it possible to join RDDs using composite keys? I would like to join these 
two RDDs with RDD1.id1 = RDD2.id1 and RDD1.id2 RDD2.id2RDD1 (id1, id2, 
scoretype1) RDD2 (id1, id2, scoretype2)
I want the result to be ResultRDD = (id1, id2, (score1, score2))
Would really appreciate if you can point me in the right direction.