Struct EventId 

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

Unique identifier for an event, backed by a UUID v4.

Every Envelope is assigned an EventId at creation time. IDs are random (not monotonic) - use Meta::timestamp() for ordering.

EventId is Copy and cheap to pass around. Use Display to get the UUID string representation, or as_u128() for the raw u128.

Implementations

impl EventId

pub fn new() -> Self

Generate a new random event ID (UUID v4).

pub fn as_u128(&self) -> u128

Returns the raw u128 value.

pub fn to_uuid(&self) -> Uuid

Returns the ID as a Uuid.

Trait Implementations

impl Clone for EventId

fn clone(&self) -> EventId

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EventId

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for EventId

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for EventId

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

Formats the value using the given formatter.

impl<E: Event, T: Topic<E>> From<EventId> for EventMatcher<E, T>

Available on crate feature test-harness only.

fn from(id: EventId) -> Self

Converts to this type from the input type.

impl From<EventId> for u128

fn from(value: EventId) -> Self

Converts to this type from the input type.

impl From<u128> for EventId

fn from(value: u128) -> Self

Converts to this type from the input type.

impl Hash for EventId

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 Ord for EventId

fn cmp(&self, other: &EventId) -> 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 EventId

fn eq(&self, other: &EventId) -> 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 EventId

fn partial_cmp(&self, other: &EventId) -> 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 Serialize for EventId

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 EventId

impl Eq for EventId

impl StructuralPartialEq for EventId