Method StopProducingImpl

cpp/src/arrow/acero/sink_node.cc:177–183

  }

  Status StopProducingImpl() override {
    // An AsyncGenerator must always be finished.  So we go ahead and
    // close the producer.  However, for custom sink nodes, we don't want
    // to bother ordering and sending output so we don't call Finish
    producer_.Close();
    return Status::OK();
  }

  Status Validate() const override {
    ARROW_RETURN_NOT_OK(ExecNode::Validate());