CDB

Struct CDB 

Source
pub struct CDB { /* private fields */ }
Expand description

CDB file reader

§Example

use cdb2::CDB;

let cdb = CDB::open("tests/test1.cdb")?;
for result in cdb.find(b"one") {
    println!("{:?}", result?);
}

Implementations§

Source§

impl CDB

Source

pub fn open<P: AsRef<Path>>(filename: P) -> Result<CDB>

Opens the named file and returns the CDB reader.

§Examples
use cdb2::CDB;

let cdb = CDB::open("tests/test1.cdb")?;
Source

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

Find the first record with the named key.

§Examples
use cdb2::CDB;

let cdb = CDB::open("tests/test1.cdb")?;
if let Some(record) = cdb.get(b"one") {
    println!("{:?}", record?);
}
Source

pub fn find(&self, key: &[u8]) -> CDBValueIter<'_>

Find all records with the named key. The returned iterator produces each value associated with the key.

§Examples
use cdb2::CDB;

let cdb = CDB::open("tests/test1.cdb")?;
for result in cdb.find(b"one") {
    println!("{:?}", result?);
}
Source

pub fn iter(&self) -> CDBKeyValueIter<'_>

Iterate over all the (key, value) pairs in the database.

§Examples
use cdb2::CDB;

let cdb = CDB::open("tests/test1.cdb")?;
for result in cdb.iter() {
    let (key, value) = result?;
    println!("{:?} => {:?}", key, value);
}

Auto Trait Implementations§

§

impl Freeze for CDB

§

impl RefUnwindSafe for CDB

§

impl Send for CDB

§

impl Sync for CDB

§

impl Unpin for CDB

§

impl UnwindSafe for CDB

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.