Method sink writes out the given {@link Tuple} found on {@link cascading.scheme.SinkCall#getOutgoingEntry()} tothe {@link cascading.scheme.SinkCall#getOutput()}.
This method may optionally throw a {@link cascading.tap.TapException} if it cannot process a particularinstance of data. If the payload Tuple is set on the TapException, that Tuple will be written to any applicable failure trap Tap. If not set, the incoming Tuple will be written instead.
@param flowProcess of Process
@param sinkCall of SinkCall