Struct kgdata::db::ReadonlyRocksDBDict

pub struct ReadonlyRocksDBDict<K: AsRef<[u8]>, V> { /* private fields */ }

Implementations

impl<K: AsRef<[u8]>, V> ReadonlyRocksDBDict<K, V>

pub fn new(db: DB, deser_value: fn(_: &[u8]) -> Result<V, KGDataError>) -> Self

Trait Implementations

impl<K: AsRef<[u8]> + Eq + Hash, V: Send + Sync> Map<K, V> for ReadonlyRocksDBDict<K, V>

fn get<Q>(&self, key: &Q) -> Result<Option<V>, KGDataError>

where Q: AsRef<[u8]> + Equivalent<K> + ?Sized,

Get a key

fn contains_key<Q>(&self, key: &Q) -> Result<bool, KGDataError>

where Q: AsRef<[u8]> + Equivalent<K> + ?Sized,

Check if a key exists

fn slice_get<Q>(&self, keys: &[Q]) -> Result<Vec<Option<V>>, KGDataError>

where Q: AsRef<[u8]> + Equivalent<K>,

Get multiple keys

fn slice_get_exist<Q: AsRef<[u8]> + Equivalent<K>>( &self, keys: &[Q] ) -> Result<Vec<V>, KGDataError>

Get existing keys – error if any key does not exist

fn slice_get_exist_as_map<Q>( &self, keys: &[Q] ) -> Result<HashMap<K, V>, KGDataError>

where Q: AsRef<[u8]> + Into<K> + Equivalent<K> + Clone,

Get existing keys as a map – error if any key does not exist

fn iter_get<I: IntoIterator<Item = Q>, Q>( &self, keys: I ) -> Result<Vec<Option<V>>, KGDataError>

where Q: AsRef<[u8]> + Equivalent<K>,

fn iter_get_exist<I: IntoIterator<Item = Q>, Q>( &self, keys: I ) -> Result<Vec<V>, KGDataError>

where Q: AsRef<[u8]> + Equivalent<K>,

fn iter_get_exist_as_map<I: IntoIterator<Item = Q>, Q>( &self, keys: I ) -> Result<HashMap<K, V>, KGDataError>

where Q: AsRef<[u8]> + Equivalent<K> + Into<K> + Clone,

fn par_slice_get<Q: AsRef<[u8]> + Sync + Send + Equivalent<K>>( &self, keys: &[Q] ) -> Result<Vec<Option<V>>, KGDataError>

Get multiple keys in parallel

fn par_slice_get_exist<Q: AsRef<[u8]> + Sync + Send + Equivalent<K>>( &self, keys: &[Q] ) -> Result<Vec<V>, KGDataError>

fn par_slice_get_exist_as_map<Q>( &self, keys: &[Q] ) -> Result<HashMap<K, V>, KGDataError>

where K: Sync + Send, Q: AsRef<[u8]> + Into<K> + Sync + Send + Equivalent<K> + Clone,