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/*
* Copyright (c) 2021, Jan de Visser <jan@de-visser.net>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibCore/Object.h>
#include <LibSQL/Forward.h>
#include <LibSQL/Meta.h>
#include <LibSQL/Serializer.h>
namespace SQL {
class IndexNode {
public:
virtual ~IndexNode() = default;
[[nodiscard]] Block::Index block_index() const { return m_block_index; }
IndexNode* as_index_node() { return dynamic_cast<IndexNode*>(this); }
protected:
explicit IndexNode(Block::Index block_index)
: m_block_index(block_index)
{
}
void set_block_index(Block::Index block_index) { m_block_index = block_index; }
private:
Block::Index m_block_index;
};
class Index : public Core::Object {
C_OBJECT_ABSTRACT(Index);
public:
~Index() override = default;
NonnullRefPtr<TupleDescriptor> descriptor() const { return m_descriptor; }
[[nodiscard]] bool duplicates_allowed() const { return !m_unique; }
[[nodiscard]] bool unique() const { return m_unique; }
[[nodiscard]] Block::Index block_index() const { return m_block_index; }
protected:
Index(Serializer&, NonnullRefPtr<TupleDescriptor> const&, bool unique, Block::Index block_index);
Index(Serializer&, NonnullRefPtr<TupleDescriptor> const&, Block::Index block_index);
[[nodiscard]] Serializer& serializer() { return m_serializer; }
void set_block_index(Block::Index block_index) { m_block_index = block_index; }
u32 request_new_block_index() { return m_serializer.request_new_block_index(); }
private:
Serializer m_serializer;
NonnullRefPtr<TupleDescriptor> m_descriptor;
bool m_unique { false };
Block::Index m_block_index { 0 };
};
}
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