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47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
/*
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* Copyright (c) 2021, Jan de Visser <jan@de-visser.net>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/NonnullRefPtr.h>
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#include <LibSQL/Forward.h>
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#include <LibSQL/Meta.h>
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#include <LibSQL/Tuple.h>
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#include <LibSQL/Value.h>
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namespace SQL {
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/**
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* A Tuple is an element of a sequential-access persistence data structure
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* like a flat table. Like a key it has a definition for all its parts,
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* but unlike a key this definition is not optional.
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*
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* FIXME Tuples should logically belong to a TupleStore object, but right now
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* they stand by themselves; they contain a row's worth of data and a pointer
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* to the next Tuple.
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*/
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class Row : public Tuple {
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public:
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explicit Row(NonnullRefPtr<TableDef>, Block::Index block_index = 0);
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virtual ~Row() override = default;
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[[nodiscard]] Block::Index next_block_index() const { return m_next_block_index; }
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void set_next_block_index(Block::Index index) { m_next_block_index = index; }
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TableDef const& table() const { return *m_table; }
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TableDef& table() { return *m_table; }
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[[nodiscard]] virtual size_t length() const override { return Tuple::length() + sizeof(Block::Index); }
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virtual void serialize(Serializer&) const override;
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virtual void deserialize(Serializer&) override;
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private:
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NonnullRefPtr<TableDef> m_table;
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Block::Index m_next_block_index { 0 };
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};
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}
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