StormByte-Database 2.0.0
C++26 database module of the StormByte suite
 
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row.hxx
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1/*
2 * Copyright (C) 2024-2026 David C. Manuelda (StormBytePP)
3 *
4 * This file is part of StormByte-Database.
5 *
6 * StormByte-Database original source is dual-licensed:
7 *
8 * 1. GNU Lesser General Public License v3.0 (or later)
9 * You may redistribute and/or modify this file under the terms of the
10 * GNU Lesser General Public License as published by the Free Software
11 * Foundation, either version 3 of the License, or (at your option)
12 * any later version.
13 *
14 * 2. Commercial license
15 * Alternatively, this file may be used under the terms of a commercial
16 * license agreement with the copyright holder
17 * (David C. Manuelda <StormByte@gmail.com>).
18 *
19 * Both licenses apply only to original StormByte-Database source in this
20 * repository. They do not cover other StormByte modules or any third-party
21 * material shipped with this repository (including everything under
22 * thirdparty/, and in particular the bundled StormByte-Logger tree and
23 * the PostgreSQL, MariaDB and SQLite trees), which remain under their own
24 * licenses.
25 *
26 * Neither license grants any patent rights. Any patent licenses required
27 * to use this software or third-party components must be obtained separately
28 * from the patent holders.
29 *
30 * StormByte-Database is distributed in the hope that it will be useful,
31 * but WITHOUT ANY WARRANTY; without even the implied warranty of
32 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
33 * GNU Lesser General Public License for more details.
34 *
35 * You should have received a copy of the GNU Lesser General Public License
36 * version 3 along with StormByte-Database. If not, see
37 * <https://www.gnu.org/licenses/lgpl-3.0.html>.
38 *
39 * SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-StormByte-Commercial
40 */
41
42#pragma once
43
45#include <StormByte/size.hxx>
47
48#include <iterator>
49#include <memory>
50#include <string_view>
51#include <utility>
52
57namespace StormByte {
62 namespace Database {
68 public:
72 using const_reference = const NamedValue&;
74 using const_pointer = const NamedValue*;
75 using iterator = pointer;
77 using reverse_iterator = std::reverse_iterator<iterator>;
78 using const_reverse_iterator = std::reverse_iterator<const_iterator>;
79
83 Row() noexcept;
84
89 Row(const Row &other);
90
94 Row(Row &&other) noexcept;
95
99 ~Row() noexcept;
100
106 Row &operator=(const Row &other);
107
111 Row &operator=(Row &&other) noexcept;
112
118 bool operator==(const Row &other) const;
119
125 bool operator!=(const Row &other) const;
126
131 iterator begin() noexcept;
132
137 const_iterator begin() const noexcept;
138
143 iterator end() noexcept;
144
149 const_iterator end() const noexcept;
150
155 const_iterator cbegin() const noexcept;
156
161 const_iterator cend() const noexcept;
162
167 reverse_iterator rbegin() noexcept;
168
173 reverse_iterator rend() noexcept;
174
179 const_reverse_iterator rbegin() const noexcept;
180
185 const_reverse_iterator rend() const noexcept;
186
191 const_reverse_iterator crbegin() const noexcept;
192
197 const_reverse_iterator crend() const noexcept;
198
203 StormByte::Size size() const noexcept;
204
209 bool empty() const noexcept;
210
217 const Value &operator[](std::string_view columnName) const &;
218
225 Value &operator[](std::string_view columnName) &;
226
233 Value operator[](std::string_view columnName) &&;
234
241 const NamedValue &operator[](StormByte::Size index) const &;
242
249 template <StormByte::Type::Integral T>
250 const NamedValue &operator[](T index) const & {
251 return (*this)[StormByte::Size{index}];
252 }
253
261
268 template <StormByte::Type::Integral T>
269 NamedValue &operator[](T index) & {
270 return (*this)[StormByte::Size{index}];
271 }
272
280
287 template <StormByte::Type::Integral T>
288 NamedValue operator[](T index) && {
289 return std::move(*this)[StormByte::Size{index}];
290 }
291
297 void add(std::string_view columnName, Value &&value);
298
303 void add(NamedValue value);
304
310 bool has_item(const NamedValue &value) const;
311
316 StormByte::Size Count() const noexcept;
317
318 private:
323 struct Columns;
324
325 std::unique_ptr<Columns> m_columns;
326
330 void BuildNameIndex() const;
331 };
332 }
333}
Value plus column name.
Definition named_value.hxx:63
One result row: ordered NamedValues with lookup by column name.
Definition row.hxx:67
NamedValue operator[](StormByte::Size index) &&
Access a column by zero-based index (rvalue).
Row() noexcept
Default constructor.
bool has_item(const NamedValue &value) const
Search for an equal named value.
StormByte::Size Count() const noexcept
Number of columns.
std::reverse_iterator< iterator > reverse_iterator
Mutable reverse iterator.
Definition row.hxx:77
void add(std::string_view columnName, Value &&value)
Append a named column.
NamedValue operator[](T index) &&
Access a column by integral zero-based index (rvalue).
Definition row.hxx:288
NamedValue & operator[](T index) &
Access a column by integral zero-based index (lvalue).
Definition row.hxx:269
std::reverse_iterator< const_iterator > const_reverse_iterator
Read-only reverse iterator.
Definition row.hxx:78
void add(NamedValue value)
Append a named value.
NamedValue & operator[](StormByte::Size index) &
Access a column by zero-based index (lvalue).
Type-erased SQL value (NULL, integers, double, text, blob, bool).
Definition value.hxx:68
Root namespace of the StormByte C++ suite.
STL namespace.
#define STORMBYTE_DATABASE_PUBLIC
Definition visibility.h:54