code: @SuppressWarnings("unchecked")
    @Override
    public void sink(FlowProcess<? extends Configuration> flowProcess, SinkCall<Corc, OutputCollector> sinkCall)
        throws IOException {
      Corc corc = sinkCall.getContext();
      TupleEntry tupleEntry = sinkCall.getOutgoingEntry();
      for (Comparable<?> fieldName : tupleEntry.getFields()) {
        corc.set(fieldName.toString(), tupleEntry.getObject(fieldName));
      }
      sinkCall.getOutput().collect(null, corc);
    }
docs: Copies the values from the outgoing {@link TupleEntry} to the {@link Corc}.