DataGenerator.hpp File Reference

Data generation utilities for creating a 500MB+ test database. More...

#include "Entities.hpp"
#include <Lightweight/DataMapper/DataMapper.hpp>
#include <cstddef>
#include <cstdint>
#include <random>
#include <string>
#include <vector>

Go to the source code of this file.

Classes
struct	LargeDb::GeneratorConfig
	Configuration for database generation. More...
class	LargeDb::SeededRandom
	Seeded random number generator wrapper for deterministic generation. More...

Functions
GeneratorConfig	LargeDb::CreateScaledConfig (double scaleFactor)
	Creates a scaled-down configuration for faster testing.
void	LargeDb::CreateSchema (Light::DataMapper &dm)
	Creates all tables for the large test database schema.
void	LargeDb::DropSchema (Light::DataMapper &dm)
	Drops all tables from the large test database schema.
void	LargeDb::PopulateDatabase (Light::DataMapper &dm, GeneratorConfig const &config={}, std::function< void(double, std::string_view)> progressCallback={})
	Populates the database with generated data according to config.
size_t	LargeDb::GetExpectedDataSize (GeneratorConfig const &config)
	Gets the expected total size of generated data based on config.
template<typename Entity , typename Generator >
size_t	LargeDb::BatchInsert (Light::DataMapper &dm, size_t count, Generator &&generator, size_t batchSize=1000)
	Batch insert helper for efficient data loading.

Detailed Description

Data generation utilities for creating a 500MB+ test database.

All generation functions are deterministic when using the same seed, allowing reproducible test runs across all supported database backends.

Definition in file DataGenerator.hpp.

Function Documentation

CreateScaledConfig()

GeneratorConfig LargeDb::CreateScaledConfig

(

double

scaleFactor

)

Creates a scaled-down configuration for faster testing.

Parameters

scaleFactor

Factor to scale down counts (e.g., 0.1 for 10% of full size)

Returns

Scaled configuration

References LargeDb::CreateScaledConfig().

Referenced by LargeDb::CreateScaledConfig().

CreateSchema()

void LargeDb::CreateSchema

(

Light::DataMapper &

dm

)

Creates all tables for the large test database schema.

Parameters

dm	DataMapper instance connected to the target database.

References LargeDb::CreateSchema().

Referenced by LargeDb::CreateSchema().

DropSchema()

void LargeDb::DropSchema

(

Light::DataMapper &

dm

)

Drops all tables from the large test database schema.

Parameters

dm	DataMapper instance connected to the target database.

References LargeDb::DropSchema().

Referenced by LargeDb::DropSchema().

PopulateDatabase()

void LargeDb::PopulateDatabase	(	Light::DataMapper &	dm,
		GeneratorConfig const &	config = {},
		std::function< void(double, std::string_view)>	progressCallback = {}
	)

Populates the database with generated data according to config.

Parameters

dm	DataMapper instance connected to the target database.
config	Generation configuration.
progressCallback	Optional callback for progress reporting (0.0 to 1.0).

References LargeDb::PopulateDatabase().

Referenced by LargeDb::PopulateDatabase().

GetExpectedDataSize()

size_t LargeDb::GetExpectedDataSize

(

GeneratorConfig const &

config

)

Gets the expected total size of generated data based on config.

Parameters

config

Generation configuration.

Returns

Expected raw data size in bytes.

References LargeDb::GetExpectedDataSize().

Referenced by LargeDb::GetExpectedDataSize().