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/*
* Copyright (c) 2021, Jan de Visser <jan@de-visser.net>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/ByteBuffer.h>
#include <AK/RefPtr.h>
#include <LibSQL/Forward.h>
#include <LibSQL/Meta.h>
#include <LibSQL/Tuple.h>
#include <LibSQL/Value.h>
namespace SQL {
/**
* A Tuple is an element of a sequential-access persistence data structure
* like a flat table. Like a key it has a definition for all its parts,
* but unlike a key this definition is not optional.
*
* FIXME Tuples should logically belong to a TupleStore object, but right now
* they stand by themselves; they contain a row's worth of data and a pointer
* to the next Tuple.
*/
class Row : public Tuple {
public:
Row();
explicit Row(TupleDescriptor const&);
explicit Row(RefPtr<TableDef>, u32 pointer = 0);
Row(RefPtr<TableDef>, u32, Serializer&);
Row(Row const&) = default;
virtual ~Row() override = default;
[[nodiscard]] u32 next_pointer() const { return m_next_pointer; }
void next_pointer(u32 ptr) { m_next_pointer = ptr; }
RefPtr<TableDef> table() const { return m_table; }
[[nodiscard]] virtual size_t length() const override { return Tuple::length() + sizeof(u32); }
virtual void serialize(Serializer&) const override;
virtual void deserialize(Serializer&) override;
protected:
void copy_from(Row const&);
private:
RefPtr<TableDef> m_table;
u32 m_next_pointer { 0 };
};
}
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