Copies the tuple, since cascading may change it after the end of an operation (and it is not safe to assume the consumer has not kept a ref to this tuple
Convert a TupleEntry to a List of CTuple, of length 2, with key, value from the TupleEntry (useful for RichPipe.unpivot)
In the case where you don't know the arity, prefer to use this.
Copies the tupleEntry, since cascading may change it after the end of an operation (and it is not safe to assume the consumer has not kept a ref to this tuple)
Treat this TupleConverter as one for a superclass We do this because we want to use implicit resolution invariantly, but clearly, the operation is covariant
Utility to create a single item Tuple