Struct async_txn::KeyRef

pub struct KeyRef<'a, K>
where
    K: 'a,
{
    pub key: &'a K,
    pub version: u64,
}

A reference to a key.

Fields

key: &'a K

The key.

version: u64

The version of the key.

Implementations

impl<'a, K> KeyRef<'a, K>

where K: 'a,

pub fn key(&self) -> &K

Returns the key.

pub fn version(&self) -> u64

Returns the version of the key.

This version is useful when you want to implement MVCC.

Trait Implementations

impl<'a, K> Borrow<K> for KeyRef<'a, K>

fn borrow(&self) -> &K

Immutably borrows from an owned value.

impl<'a, K> Clone for KeyRef<'a, K>

fn clone(&self) -> KeyRef<'a, K>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a, K> Debug for KeyRef<'a, K>

where K: Debug + 'a,

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

Formats the value using the given formatter.

impl<'a, K> Hash for KeyRef<'a, K>

where K: Hash + 'a,

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a, K> Ord for KeyRef<'a, K>

where K: Ord,

fn cmp(&self, other: &KeyRef<'a, K>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl<'a, K> PartialEq for KeyRef<'a, K>

where K: PartialEq + 'a,

fn eq(&self, other: &KeyRef<'a, K>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, K> PartialOrd for KeyRef<'a, K>

where K: Ord,

fn partial_cmp(&self, other: &KeyRef<'a, K>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a, K> Copy for KeyRef<'a, K>

impl<'a, K> Eq for KeyRef<'a, K>

where K: Eq + 'a,

impl<'a, K> StructuralPartialEq for KeyRef<'a, K>

where K: 'a,