Struct rocksdb::DB

pub struct DB { /* fields omitted */ }

A RocksDB database.

Methods

impl DB

fn open_default<P: AsRef<Path>>(path: P) -> Result<DB, Error>

Open a database with default options.

fn open<P: AsRef<Path>>(opts: &Options, path: P) -> Result<DB, Error>

Open the database with the specified options.

fn open_cf<P: AsRef<Path>>(opts: &Options, path: P, cfs: &[&str]) -> Result<DB, Error>

Open a database with specified options and column family.

A column family must be created first by calling DB::create_cf.

Panics

• Panics if the column family doesn't exist.

fn destroy<P: AsRef<Path>>(opts: &Options, path: P) -> Result<(), Error>

fn repair<P: AsRef<Path>>(opts: Options, path: P) -> Result<(), Error>

fn path(&self) -> &Path

fn write_opt(&self, batch: WriteBatch, writeopts: &WriteOptions) -> Result<(), Error>

fn write(&self, batch: WriteBatch) -> Result<(), Error>

fn write_without_wal(&self, batch: WriteBatch) -> Result<(), Error>

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

fn get(&self, key: &[u8]) -> Result<Option<DBVector>, Error>

Return the bytes associated with a key value

fn get_cf_opt(&self, cf: *mut rocksdb_column_family_handle_t, key: &[u8], readopts: &ReadOptions) -> Result<Option<DBVector>, Error>

fn get_cf(&self, cf: *mut rocksdb_column_family_handle_t, key: &[u8]) -> Result<Option<DBVector>, Error>

fn create_cf(&mut self, name: &str, opts: &Options) -> Result<*mut rocksdb_column_family_handle_t, Error>

fn drop_cf(&mut self, name: &str) -> Result<(), Error>

fn cf_handle(&self, name: &str) -> Option<&*mut rocksdb_column_family_handle_t>

Return the underlying column family handle.

fn iterator(&self, mode: IteratorMode) -> DBIterator

fn iterator_cf(&self, cf_handle: *mut rocksdb_column_family_handle_t, mode: IteratorMode) -> Result<DBIterator, Error>

fn snapshot(&self) -> Snapshot

fn put_opt(&self, key: &[u8], value: &[u8], writeopts: &WriteOptions) -> Result<(), Error>

fn put_cf_opt(&self, cf: *mut rocksdb_column_family_handle_t, key: &[u8], value: &[u8], writeopts: &WriteOptions) -> Result<(), Error>

fn merge_opt(&self, key: &[u8], value: &[u8], writeopts: &WriteOptions) -> Result<(), Error>

fn merge_cf_opt(&self, cf: *mut rocksdb_column_family_handle_t, key: &[u8], value: &[u8], writeopts: &WriteOptions) -> Result<(), Error>

fn delete_opt(&self, key: &[u8], writeopts: &WriteOptions) -> Result<(), Error>

fn delete_cf_opt(&self, cf: *mut rocksdb_column_family_handle_t, key: &[u8], writeopts: &WriteOptions) -> Result<(), Error>

fn put(&self, key: &[u8], value: &[u8]) -> Result<(), Error>

fn put_cf(&self, cf: *mut rocksdb_column_family_handle_t, key: &[u8], value: &[u8]) -> Result<(), Error>

fn merge(&self, key: &[u8], value: &[u8]) -> Result<(), Error>

fn merge_cf(&self, cf: *mut rocksdb_column_family_handle_t, key: &[u8], value: &[u8]) -> Result<(), Error>

fn delete(&self, key: &[u8]) -> Result<(), Error>

fn delete_cf(&self, cf: *mut rocksdb_column_family_handle_t, key: &[u8]) -> Result<(), Error>

fn compact_range(&self, start: Option<&[u8]>, end: Option<&[u8]>)

fn compact_range_cf(&self, cf: *mut rocksdb_column_family_handle_t, start: Option<&[u8]>, end: Option<&[u8]>)

Trait Implementations

impl Send for DB

impl Sync for DB

impl Drop for DB

fn drop(&mut self)

A method called when the value goes out of scope.

impl Debug for DB

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.