96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
#pragma once
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#include "stdafx.hpp"
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#include <sqlite3.h>
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#include <map>
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namespace VSW::Materializer::Database {
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class AbstractDatabase {
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public:
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AbstractDatabase(const YYCC::yycc_u8string_view& file);
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virtual ~AbstractDatabase();
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AbstractDatabase(const AbstractDatabase&) = delete;
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AbstractDatabase& operator=(const AbstractDatabase&) = delete;
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AbstractDatabase(AbstractDatabase&&) = delete;
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AbstractDatabase& operator=(AbstractDatabase&&) = delete;
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public:
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/// @brief Check whether this database is ready for use.
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bool IsValid() const;
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protected:
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/**
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* @brief User implemented function called after connect to the database before transition.
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* @return True if success, otherwise false.
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*/
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virtual bool PostOpen() = 0;
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/**
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* @brief User implemented function called after transition before disconnect from database.
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* @return True if success, otherwise false.
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*/
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virtual bool PreClose() = 0;
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protected:
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/// @brief Subclass used for creating stmt with cache feature.
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sqlite3_stmt* GetStmt(const char* stmt_str);
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/// @brief Subclass used for get pointer to opened database.
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sqlite3* GetDb();
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private:
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sqlite3* m_Db;
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std::map<const void*, sqlite3_stmt*> m_StmtCache;
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};
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class ScriptDatabase : public AbstractDatabase {
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public:
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ScriptDatabase(const YYCC::yycc_u8string_view& file);
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virtual ~ScriptDatabase();
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ScriptDatabase(const ScriptDatabase&) = delete;
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ScriptDatabase& operator=(const ScriptDatabase&) = delete;
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ScriptDatabase(ScriptDatabase&&) = delete;
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ScriptDatabase& operator=(ScriptDatabase&&) = delete;
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protected:
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virtual bool PostOpen() override;
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virtual bool PreClose() override;
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public:
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};
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class ContextDatabase : public AbstractDatabase {
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public:
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ContextDatabase(const YYCC::yycc_u8string_view& file);
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virtual ~ContextDatabase();
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ContextDatabase(const ContextDatabase&) = delete;
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ContextDatabase& operator=(const ContextDatabase&) = delete;
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ContextDatabase(ContextDatabase&&) = delete;
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ContextDatabase& operator=(ContextDatabase&&) = delete;
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protected:
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virtual bool PostOpen() override;
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virtual bool PreClose() override;
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public:
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};
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class EnvironmentDatabase : public AbstractDatabase {
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public:
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EnvironmentDatabase(const YYCC::yycc_u8string_view& file);
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virtual ~EnvironmentDatabase();
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EnvironmentDatabase(const EnvironmentDatabase&) = delete;
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EnvironmentDatabase& operator=(const EnvironmentDatabase&) = delete;
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EnvironmentDatabase(EnvironmentDatabase&&) = delete;
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EnvironmentDatabase& operator=(EnvironmentDatabase&&) = delete;
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protected:
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virtual bool PostOpen() override;
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virtual bool PreClose() override;
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public:
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};
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}
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