nt::SqliteBackend Class Reference

Inheritance diagram for nt::SqliteBackend:

Public Member Functions
	SqliteBackend (const std::string &path=":memory:")
	Opens (or creates) a SQLite database at path.
std::string	Put (std::vector< uint8_t > value) override
	Stores a serialized value and returns its SHA256 hex hash.
std::optional< std::vector< uint8_t > >	Get (const std::string &hash) override
	Retrieves bytes by their SHA256 hex hash.

Constructor & Destructor Documentation

SqliteBackend()

nt::SqliteBackend::SqliteBackend ( const std::string & path = ":memory:" )

explicit

Opens (or creates) a SQLite database at path.

Parameters

path	File path, or ":memory:" for an in-process database.

Exceptions

std::runtime_error

if the database cannot be opened.

Member Function Documentation

Get()

std::optional< std::vector< uint8_t > > nt::SqliteBackend::Get ( const std::string & hash )

overridevirtual

Retrieves bytes by their SHA256 hex hash.

Returns

The stored bytes, or std::nullopt when the hash is unknown.

Implements nt::IStorageBackend.

Put()

std::string nt::SqliteBackend::Put ( std::vector< uint8_t > value )

overridevirtual

Stores a serialized value and returns its SHA256 hex hash.

Idempotent: storing the same bytes twice does not create a duplicate. The returned hash is the only valid key for subsequent Get calls.

Implements nt::IStorageBackend.

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The documentation for this class was generated from the following files:

• SqliteBackend.h
• SqliteBackend.cpp