/* * Copyright (c) 2021, Jan de Visser * * SPDX-License-Identifier: BSD-2-Clause */ #pragma once #include #include #include #include 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(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 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 const&, bool unique, Block::Index block_index); Index(Serializer&, NonnullRefPtr 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 m_descriptor; bool m_unique { false }; Block::Index m_block_index { 0 }; }; }