database_backend.h File Reference

Abstract interface for database backends. More...

#include "../database_types.h"
#include <kcenon/common/patterns/result.h>
#include <memory>
#include <string>
#include <vector>
#include <map>
#include <variant>

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Classes
struct	database::core::connection_config
	Configuration for database connection. More...
class	database::core::database_backend
	Abstract base class for database backends. More...

Namespaces
namespace	database
namespace	database::core

Typedefs
using	database::core::database_value = std::variant<std::string, int64_t, double, bool, std::nullptr_t>
using	database::core::database_row = std::map<std::string, database_value>
using	database::core::database_result = std::vector<database_row>
using	database::core::backend_factory_fn = std::unique_ptr<database_backend> (*)()
	Factory function type for creating database backends.

Detailed Description

Abstract interface for database backends.

Defines the interface that all database backends must implement. This enables runtime selection of database implementation without conditional compilation, following the backend pattern successfully implemented in Sprint 4 for logger, monitoring, and thread adapters.

Design Goals:

• Eliminate conditional compilation (#ifdef USE_POSTGRESQL, etc.)
• Enable runtime backend selection
• Support plugin architecture for extensibility
• Maintain backward compatibility with existing database_base interface

Definition in file database_backend.h.