ersa::services::MemoryStorageService Class Reference

Inheritance diagram for ersa::services::MemoryStorageService:

Collaboration diagram for ersa::services::MemoryStorageService:

Public Member Functions
Result< void >	init () override
bool	setString (std::string_view key, std::string_view value) override
std::string	getString (std::string_view key, std::string_view defaultValue) override
bool	setInt (std::string_view key, int32_t value) override
int32_t	getInt (std::string_view key, int32_t defaultValue) override
bool	setBool (std::string_view key, bool value) override
bool	getBool (std::string_view key, bool defaultValue) override
bool	setBytes (std::string_view key, const void *data, size_t size) override
size_t	getBytesLength (std::string_view key) override
size_t	getBytes (std::string_view key, void *data, size_t size) override
bool	remove (std::string_view key) override
void	clear () override
Public Member Functions inherited from ersa::services::StorageService
virtual	~StorageService ()=default

Private Attributes
std::unordered_map< std::string, std::string >	map_

Additional Inherited Members
Static Public Member Functions inherited from ersa::services::StorageService
static StorageService &	instance ()
	Return the installed process-wide storage service.
static void	setInstance (StorageService *instance)
	Install the process-wide storage backend.

Member Function Documentation

clear()

void ersa::services::MemoryStorageService::clear ( )

inlineoverridevirtual

Clear this service's namespace; use carefully because it removes all keys.

Implements ersa::services::StorageService.

getBool()

bool ersa::services::MemoryStorageService::getBool ( std::string_view  key, bool  defaultValue  )

inlineoverridevirtual

Read a boolean setting or return defaultValue when the key is absent.

Implements ersa::services::StorageService.

getBytes()

size_t ersa::services::MemoryStorageService::getBytes ( std::string_view  key, void *  data, size_t  size  )

inlineoverridevirtual

Copy a stored record when its size matches; return bytes copied or zero.

Implements ersa::services::StorageService.

getBytesLength()

size_t ersa::services::MemoryStorageService::getBytesLength ( std::string_view  key )

inlineoverridevirtual

Return the exact stored record size, or zero when the key is absent.

Implements ersa::services::StorageService.

getInt()

int32_t ersa::services::MemoryStorageService::getInt ( std::string_view  key, int32_t  defaultValue  )

inlineoverridevirtual

Read a signed integer or return defaultValue for an absent key.

Implements ersa::services::StorageService.

getString()

std::string ersa::services::MemoryStorageService::getString ( std::string_view  key, std::string_view  defaultValue  )

inlineoverridevirtual

Return the stored value or a copy of defaultValue when key is absent.

Implements ersa::services::StorageService.

init()

Result< void > ersa::services::MemoryStorageService::init ( )

inlineoverridevirtual

Mount/open the backend and prepare its namespace for reads and writes.

Implements ersa::services::StorageService.

remove()

bool ersa::services::MemoryStorageService::remove ( std::string_view  key )

inlineoverridevirtual

Remove one key; false means no removal was made or the backend failed.

Implements ersa::services::StorageService.

setBool()

bool ersa::services::MemoryStorageService::setBool ( std::string_view  key, bool  value  )

inlineoverridevirtual

Store a boolean setting; false indicates that persistence failed.

Implements ersa::services::StorageService.

setBytes()

bool ersa::services::MemoryStorageService::setBytes ( std::string_view  key, const void *  data, size_t  size  )

inlineoverridevirtual

Store an opaque byte record for bounded caches and versioned snapshots.

Implements ersa::services::StorageService.

setInt()

bool ersa::services::MemoryStorageService::setInt ( std::string_view  key, int32_t  value  )

inlineoverridevirtual

Store a signed integer using the backend's typed representation.

Implements ersa::services::StorageService.

setString()

bool ersa::services::MemoryStorageService::setString ( std::string_view  key, std::string_view  value  )

inlineoverridevirtual

Store a string; false reports backend failure or exhausted storage.

Implements ersa::services::StorageService.

Member Data Documentation

map_

std::unordered_map<std::string, std::string> ersa::services::MemoryStorageService::map_

private

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

• src/ersa/services/storage_service.cpp