Enum polkadot_service::DatabaseSource

pub enum DatabaseSource {
    Auto {
        paritydb_path: PathBuf,
        rocksdb_path: PathBuf,
        cache_size: usize,
    },
    RocksDb {
        path: PathBuf,
        cache_size: usize,
    },
    ParityDb {
        path: PathBuf,
    },
    Custom {
        db: Arc<dyn Database<H256>>,
        require_create_flag: bool,
    },
}

Where to find the database..

Variants

Auto

Check given path, and see if there is an existing database there. If it’s either RocksDb or ParityDb, use it. If there is none, create a new instance of ParityDb.

Fields

paritydb_path: PathBuf

Path to the paritydb database.

rocksdb_path: PathBuf

Path to the rocksdb database.

cache_size: usize

Cache size in MiB. Used only by RocksDb variant of DatabaseSource.

RocksDb

Load a RocksDB database from a given path. Recommended for most uses.

Fields

path: PathBuf

Path to the database.

cache_size: usize

Cache size in MiB.

ParityDb

Load a ParityDb database from a given path.

Fields

path: PathBuf

Path to the database.

Custom

Use a custom already-open database.

Fields

db: Arc<dyn Database<H256>>

the handle to the custom storage

require_create_flag: bool

if set, the create flag will be required to open such datasource

Implementations

impl DatabaseSource

pub fn path(&self) -> Option<&Path>

Return path for databases that are stored on disk.

pub fn set_path(&mut self, p: &Path) -> bool

Set path for databases that are stored on disk.

Trait Implementations

impl Clone for DatabaseSource

fn clone(&self) -> DatabaseSource

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DatabaseSource

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for DatabaseSource

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.