Struct DecQueuePositionId 

pub struct DecQueuePositionId(/* private fields */);

Queue position number

Implementations

impl DecQueuePositionId

pub fn new(x: u64) -> Self

Construct a new value from a u64.

pub fn u64(self) -> u64

The underlying u64 representation.

pub fn next(self) -> Self

Generate the next position ID

Panics on overflow

Trait Implementations

impl Clone for DecQueuePositionId

fn clone(&self) -> DecQueuePositionId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DecQueuePositionId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DecQueuePositionId

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for DecQueuePositionId

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

Formats the value using the given formatter.

impl FromStr for DecQueuePositionId

type Err = ParseIntError

The associated error which can be returned from parsing.

fn from_str(src: &str) -> Result<Self, ParseIntError>

Parses a string s to return a value of this type.

impl KeyDeserialize for DecQueuePositionId

const KEY_ELEMS: u16 = 1u16

The number of key elements is used for the deserialization of compound keys. It should be equal to PrimaryKey::key().len()

type Output = DecQueuePositionId

fn from_vec(value: Vec<u8>) -> StdResult<Self::Output>

fn from_slice(value: &[u8]) -> Result<Self::Output, StdError>

impl Ord for DecQueuePositionId

fn cmp(&self, other: &DecQueuePositionId) -> 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 PartialEq for DecQueuePositionId

fn eq(&self, other: &DecQueuePositionId) -> 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 PartialOrd for DecQueuePositionId

fn partial_cmp(&self, other: &DecQueuePositionId) -> 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> Prefixer<'a> for DecQueuePositionId

fn prefix(&self) -> Vec<Key<'_>>

returns 0 or more namespaces that should be length-prefixed and concatenated for range searches

fn joined_prefix(&self) -> Vec<u8>

impl<'a> PrimaryKey<'a> for DecQueuePositionId

type Prefix = ()

These associated types need to implement Prefixer, so that they can be useful arguments for prefix(), sub_prefix(), and their key-deserializable variants.

type SubPrefix = ()

type Suffix = DecQueuePositionId

These associated types need to implement KeyDeserialize, so that they can be returned from range_de() and friends.

type SuperSuffix = DecQueuePositionId

fn key(&self) -> Vec<Key<'_>>

returns a slice of key steps, which can be optionally combined

fn joined_key(&self) -> Vec<u8>

fn joined_extra_key(&self, key: &[u8]) -> Vec<u8>

impl Serialize for DecQueuePositionId

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for DecQueuePositionId

impl Eq for DecQueuePositionId

impl StructuralPartialEq for DecQueuePositionId