Struct Database

pub struct Database { /* private fields */ }

Implementations

impl Database

pub fn open(name: &Path, options: &Options) -> Result<Database, Error>

Open a new database

If the database is missing, the behaviour depends on options.create_if_missing. The database will be created using the settings given in options.

pub fn open_with_comparator<C: Comparator>( name: &Path, options: &Options, comparator: C, ) -> Result<Database, Error>

Open a new database with a custom comparator

If the database is missing, the behaviour depends on options.create_if_missing. The database will be created using the settings given in options.

The comparator must implement a total ordering over the keyspace.

For keys that implement Ord, consider the OrdComparator.

pub fn put( &self, options: &WriteOptions, key: &dyn IntoLevelDBKey, value: &[u8], ) -> Result<(), Error>

pub fn put_u8( &self, options: &WriteOptions, key: &[u8], value: &[u8], ) -> Result<(), Error>

pub fn get( &self, options: &ReadOptions, key: &dyn IntoLevelDBKey, ) -> Result<Option<Vec<u8>>, Error>

pub fn get_u8( &self, options: &ReadOptions, key: &[u8], ) -> Result<Option<Vec<u8>>, Error>

pub fn delete( &self, options: &WriteOptions, key: &dyn IntoLevelDBKey, ) -> Result<(), Error>

pub fn delete_u8(&self, options: &WriteOptions, key: &[u8]) -> Result<(), Error>

Trait Implementations

impl Batch for Database

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

Write a batch to the database, ensuring success for all items or an error

impl<'a> Compaction<'a> for Database

fn compact(&self, start: &'a [u8], limit: &'a [u8])

impl Debug for Database

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

Formats the value using the given formatter.

impl<'a> Iterable<'a> for Database

fn iter(&'a self, options: &ReadOptions) -> Iterator<'a>

Return an Iterator iterating over (Key,Value) pairs

fn keys_iter(&'a self, options: &ReadOptions) -> KeyIterator<'a>

Returns an Iterator iterating over Keys only.

fn value_iter(&'a self, options: &ReadOptions) -> ValueIterator<'a>

Returns an Iterator iterating over Values only.

impl Snapshots for Database

fn snapshot(&self) -> Snapshot<'_>

Creates a snapshot and returns a struct representing it.

impl Send for Database

impl Sync for Database