apollo::common::KVDB Class Reference

Lightweight key-value database to store system-wide parameters. We prefer keys like "apollo:data:commit_id". More...

#include <kv_db.h>

Collaboration diagram for apollo::common::KVDB:

Static Public Member Functions
static bool	Put (std::string_view key, std::string_view value)
	Store {key, value} to DB. More...
static bool	Delete (std::string_view key)
	Delete a key. More...
static std::optional< std::string >	Get (std::string_view key)
	Get value of a key. More...

Detailed Description

Lightweight key-value database to store system-wide parameters. We prefer keys like "apollo:data:commit_id".

Member Function Documentation

Delete()

static bool apollo::common::KVDB::Delete ( std::string_view  key )

static

Delete a key.

Returns

Success or not.

Get()

static std::optional<std::string> apollo::common::KVDB::Get ( std::string_view  key )

static

Get value of a key.

Returns

An optional value. Use has_value() to check if there is non-empty value. Use value() to get real value. Use value_or("") to get existing value or fallback to default.

Put()

static bool apollo::common::KVDB::Put ( std::string_view  key, std::string_view  value  )

static

Store {key, value} to DB.

Returns

Success or not.

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

• modules/common/kv_db/kv_db.h