Struct ValueRef 

pub struct ValueRef<'a> { /* private fields */ }

ValueRef contains a &'a Value

Implementations

impl<'a> ValueRef<'a>

pub const fn new( meta: u8, user_meta: u8, expires_at: u64, version: u64, data: &'a [u8], ) -> Self

Returns a ValueRef from byte slice

pub unsafe fn from_raw_value_pointer(rp: RawValuePointer) -> ValueRef<'a>

Returns a ValueRef from RawKeyPointer

Safety

The inner raw pointer of RawKeyPointer must be valid.

pub fn to_string(&self) -> String

Converts a slice of bytes to a string, including invalid characters.

pub fn to_lossy_string(&self) -> Cow<'_, str>

Converts a slice of bytes to a string, including invalid characters.

pub fn to_value(&self) -> Value

Copy the data to a new value

pub fn get_version(&self) -> u64

Get the value version

pub fn set_version(&mut self, version: u64)

Set the value version for this value ref

Trait Implementations

impl<'a> Clone for ValueRef<'a>

fn clone(&self) -> ValueRef<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for ValueRef<'a>

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

Formats the value using the given formatter.

impl<'a> Hash for ValueRef<'a>

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

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> Ord for ValueRef<'a>

fn cmp(&self, other: &ValueRef<'a>) -> 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,

Restrict a value to a certain interval.

impl<'a> PartialEq for ValueRef<'a>

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl<'a> PartialOrd for ValueRef<'a>

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<'a> ValueExt for ValueRef<'a>

fn as_value_ref(&self) -> ValueRef<'_>

Returns a ValueRef

fn parse_value(&self) -> &[u8]

Returns the value data

fn parse_value_to_bytes(&self) -> Bytes

Returns the value data (do shallow copy, except RawValuePointer)

fn get_meta(&self) -> u8

Get the meta of the value

fn get_user_meta(&self) -> u8

Get the user meta

fn get_expires_at(&self) -> u64

Returns the expiration time (unix timestamp) for this value

fn encoded_size(&self) -> u32

Returns the size of the Value when encoded

fn encode(&self, buf: &mut [u8])

Encode to a mutable slice. This function will copy the value. Use to_encoded, if you want a shallow copy when encoded.

fn encode_to_buf(&self, buf: impl BufMut)

Encode to a mutable buf. This function will copy the value. Use to_encoded, if you want a shallow copy when encoded.

fn to_encoded(&self) -> EncodedValue

Encode to EncodedValue.

fn decode_value_ref(src: &[u8]) -> ValueRef<'_>

Decodes byte slice to value ref.

fn decode_value(src: &[u8]) -> Value

Decodes byte slice to value.

fn decode_bytes(src: Bytes) -> Value

Decode bytes to value. (Shallow copy)

fn has_prefix(&self, prefix: impl ValueExt) -> bool

Returns whether the slice self begins with prefix.

fn has_suffix(&self, suffix: impl ValueExt) -> bool

Returns whether the slice self ends with suffix.

fn longest_prefix(&self, other: impl ValueExt) -> &[u8]

Finds the longest shared prefix

fn longest_suffix(&self, other: impl ValueExt) -> &[u8]

Finds the longest shared suffix

fn longest_prefix_lossy(&self, other: impl ValueExt) -> Cow<'_, [u8]>

Finds the longest shared prefix, return a Cow<’_, u8>.

fn longest_suffix_lossy(&self, other: impl ValueExt) -> Cow<'_, [u8]>

Finds the longest shared suffix, return a Cow<’_, u8>.

impl<'a> Copy for ValueRef<'a>

impl<'a> Eq for ValueRef<'a>

impl<'a> StructuralPartialEq for ValueRef<'a>