Struct cqrs::EventNumber

pub struct EventNumber(_);

Represents an event sequence number, starting at 1

Methods

impl EventNumber

pub const MIN_VALUE: EventNumber

The minimum EventNumber.

pub fn new(x: u64) -> Option<EventNumber>

Attempts to create a new event number from a given number. Will return non if the given number is 0.

pub fn get(self) -> u64

Extracts the event number as a plain u64.

pub fn incr(&mut self)

Increments the event number to the next value.

#[must_use] pub fn next(self) -> EventNumber

Gets the event number after the current one.

Trait Implementations

impl From<EventNumber> for Version

fn from(event_number: EventNumber) -> Version

Performs the conversion.

impl PartialEq<EventNumber> for EventNumber

fn eq(&self, other: &EventNumber) -> bool

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

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

This method tests for !=.

impl Display for EventNumber

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

Formats the value using the given formatter.

impl Hash for EventNumber

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, 

Feeds a slice of this type into the given [Hasher].

impl PartialOrd<EventNumber> for EventNumber

fn partial_cmp(&self, other: &EventNumber) -> Option<Ordering>

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

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

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

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

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

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

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

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

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

impl Copy for EventNumber

impl Debug for EventNumber

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

Formats the value using the given formatter.

impl Clone for EventNumber

fn clone(&self) -> EventNumber

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Ord for EventNumber

fn cmp(&self, other: &EventNumber) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl Eq for EventNumber