cpp/src/gandiva/expression.h

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#ifndef GANDIVA_EXPR_EXPRESSION_H
#define GANDIVA_EXPR_EXPRESSION_H

#include <string>

#include "gandiva/arrow.h"
#include "gandiva/gandiva_aliases.h"
#include "gandiva/visibility.h"

namespace gandiva {

/// \brief An expression tree with a root node, and a result field.
class GANDIVA_EXPORT Expression {
 public:
  Expression(const NodePtr root, const FieldPtr result) : root_(root), result_(result) {}

  virtual ~Expression() = default;

  const NodePtr& root() const { return root_; }

  const FieldPtr& result() const { return result_; }

  std::string ToString();

 private:
  const NodePtr root_;
  const FieldPtr result_;
};

}  // namespace gandiva

#endif  // GANDIVA_EXPR_EXPRESSION_H