Trait rocksdb::DBAccess

pub trait DBAccess {
    unsafe fn create_snapshot(&self) -> *const rocksdb_snapshot_t;
    unsafe fn release_snapshot(&self, snapshot: *const rocksdb_snapshot_t);
    unsafe fn create_iterator(
        &self,
        readopts: &ReadOptions
    ) -> *mut rocksdb_iterator_t;
    unsafe fn create_iterator_cf(
        &self,
        cf_handle: *mut rocksdb_column_family_handle_t,
        readopts: &ReadOptions
    ) -> *mut rocksdb_iterator_t;
    fn get_opt<K: AsRef<[u8]>>(
        &self,
        key: K,
        readopts: &ReadOptions
    ) -> Result<Option<Vec<u8>>, Error>;
    fn get_cf_opt<K: AsRef<[u8]>>(
        &self,
        cf: &impl AsColumnFamilyRef,
        key: K,
        readopts: &ReadOptions
    ) -> Result<Option<Vec<u8>>, Error>;
    fn get_pinned_opt<K: AsRef<[u8]>>(
        &self,
        key: K,
        readopts: &ReadOptions
    ) -> Result<Option<DBPinnableSlice<'_>>, Error>;
    fn get_pinned_cf_opt<K: AsRef<[u8]>>(
        &self,
        cf: &impl AsColumnFamilyRef,
        key: K,
        readopts: &ReadOptions
    ) -> Result<Option<DBPinnableSlice<'_>>, Error>;
    fn multi_get_opt<K, I>(
        &self,
        keys: I,
        readopts: &ReadOptions
    ) -> Vec<Result<Option<Vec<u8>>, Error>>
    where
        K: AsRef<[u8]>,
        I: IntoIterator<Item = K>;
    fn multi_get_cf_opt<'b, K, I, W>(
        &self,
        keys_cf: I,
        readopts: &ReadOptions
    ) -> Vec<Result<Option<Vec<u8>>, Error>>
    where
        K: AsRef<[u8]>,
        I: IntoIterator<Item = (&'b W, K)>,
        W: AsColumnFamilyRef + 'b;
}

Minimal set of DB-related methods, intended to be generic over DBWithThreadMode<T>. Mainly used internally

Required Methods

unsafe fn create_snapshot(&self) -> *const rocksdb_snapshot_t

unsafe fn release_snapshot(&self, snapshot: *const rocksdb_snapshot_t)

unsafe fn create_iterator(
    &self,
    readopts: &ReadOptions
) -> *mut rocksdb_iterator_t

unsafe fn create_iterator_cf(
    &self,
    cf_handle: *mut rocksdb_column_family_handle_t,
    readopts: &ReadOptions
) -> *mut rocksdb_iterator_t

fn get_opt<K: AsRef<[u8]>>(
    &self,
    key: K,
    readopts: &ReadOptions
) -> Result<Option<Vec<u8>>, Error>

fn get_cf_opt<K: AsRef<[u8]>>(
    &self,
    cf: &impl AsColumnFamilyRef,
    key: K,
    readopts: &ReadOptions
) -> Result<Option<Vec<u8>>, Error>

fn get_pinned_opt<K: AsRef<[u8]>>(
    &self,
    key: K,
    readopts: &ReadOptions
) -> Result<Option<DBPinnableSlice<'_>>, Error>

fn get_pinned_cf_opt<K: AsRef<[u8]>>(
    &self,
    cf: &impl AsColumnFamilyRef,
    key: K,
    readopts: &ReadOptions
) -> Result<Option<DBPinnableSlice<'_>>, Error>

fn multi_get_opt<K, I>(
    &self,
    keys: I,
    readopts: &ReadOptions
) -> Vec<Result<Option<Vec<u8>>, Error>>where
    K: AsRef<[u8]>,
    I: IntoIterator<Item = K>,

fn multi_get_cf_opt<'b, K, I, W>(
    &self,
    keys_cf: I,
    readopts: &ReadOptions
) -> Vec<Result<Option<Vec<u8>>, Error>>where
    K: AsRef<[u8]>,
    I: IntoIterator<Item = (&'b W, K)>,
    W: AsColumnFamilyRef + 'b,

Implementors

impl<'db, DB> DBAccess for Transaction<'db, DB>

impl<T: ThreadMode> DBAccess for TransactionDB<T>

impl<T: ThreadMode, D: DBInner> DBAccess for DBCommon<T, D>