strings_column_view.hpp

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2019-2025, NVIDIA CORPORATION.
 * SPDX-License-Identifier: Apache-2.0
 */
#pragma once
 
#include <cudf/column/column_view.hpp>
#include <cudf/utilities/default_stream.hpp>
#include <cudf/utilities/export.hpp>
 
namespace CUDF_EXPORT cudf {
 
class strings_column_view : private column_view {
 public:
  strings_column_view(column_view strings_column);
  // So we can use this from cython.
  strings_column_view()                           = default;
  strings_column_view(strings_column_view&&)      = default;  
  strings_column_view(strings_column_view const&) = default;  
  ~strings_column_view() override                 = default;
  strings_column_view& operator=(strings_column_view const&) = default;
  strings_column_view& operator=(strings_column_view&&) = default;
 
  static constexpr size_type offsets_column_index{0};  
 
  using column_view::has_nulls;
  using column_view::is_empty;
  using column_view::null_count;
  using column_view::null_mask;
  using column_view::offset;
  using column_view::size;
 
  using offset_iterator = size_type const*;  
  using chars_iterator  = char const*;       
 
  [[nodiscard]] column_view parent() const;
 
  [[nodiscard]] column_view offsets() const;
 
  [[nodiscard]] int64_t chars_size(rmm::cuda_stream_view stream) const;
 
  [[nodiscard]] chars_iterator chars_begin(rmm::cuda_stream_view) const noexcept;
 
  [[nodiscard]] chars_iterator chars_end(rmm::cuda_stream_view stream) const;
};
 
namespace strings {
}  // namespace strings
  // end of group
}  // namespace CUDF_EXPORT cudf