Struct leveldb::database::db::Database

pub struct Database { /* fields omitted */ }

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

pub 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

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

impl Debug for Database

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

Formats the value using the given formatter.

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

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

Return an Iterator iterating over (Key,Value) pairs

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

Returns an Iterator iterating over Keys only.

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

Returns an Iterator iterating over Values only.

impl Send for Database

impl Snapshots for Database

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

Creates a snapshot and returns a struct representing it.

impl Sync for Database