Struct Event 

pub struct Event {
    pub event_type: Arc<str>,
    pub timestamp: DateTime<Utc>,
    pub data: IndexMap<Arc<str>, Value, FxBuildHasher>,
}

A runtime event

Fields

event_type: Arc<str>

Event type name (Arc<str> for O(1) clone instead of O(n) String clone).

timestamp: DateTime<Utc>

Timestamp of the event (defaults to current server time if not provided).

data: IndexMap<Arc<str>, Value, FxBuildHasher>

Event payload (uses Arc<str> keys for O(1) cloning, FxBuildHasher for faster access).

Implementations

impl Event

pub fn new(event_type: impl Into<Arc<str>>) -> Event

Creates a new event with the given type and current timestamp.

pub fn new_at( event_type: impl Into<Arc<str>>, timestamp: DateTime<Utc>, ) -> Event

Creates a new event with a specific timestamp (avoids Utc::now() syscall).

pub fn with_capacity(event_type: impl Into<Arc<str>>, capacity: usize) -> Event

Creates a new event with pre-allocated capacity for fields. Use this when you know the approximate number of fields in advance.

pub fn with_capacity_at( event_type: impl Into<Arc<str>>, capacity: usize, timestamp: DateTime<Utc>, ) -> Event

Creates a new event with pre-allocated capacity and a specific timestamp.

pub fn from_fields( event_type: impl Into<Arc<str>>, data: IndexMap<Arc<str>, Value, FxBuildHasher>, ) -> Event

Creates a new event from pre-built fields map. Use this when you already have the fields constructed (e.g., from JSON parsing).

pub fn from_string_fields( event_type: impl Into<Arc<str>>, data: IndexMap<String, Value, FxBuildHasher>, ) -> Event

Creates a new event from pre-built fields map with String keys (converts to Arc<str>).

pub fn from_fields_with_timestamp( event_type: impl Into<Arc<str>>, timestamp: DateTime<Utc>, data: IndexMap<Arc<str>, Value, FxBuildHasher>, ) -> Event

Creates a new event from pre-built fields map with a specific timestamp.

pub const fn with_timestamp(self, ts: DateTime<Utc>) -> Event

Sets the event’s timestamp (builder pattern).

pub fn with_field( self, key: impl Into<Arc<str>>, value: impl Into<Value>, ) -> Event

Adds a field to the event (builder pattern).

pub fn get(&self, key: &str) -> Option<&Value>

Looks up a field value by name.

pub fn get_float(&self, key: &str) -> Option<f64>

Looks up a field and extracts it as f64.

pub fn get_int(&self, key: &str) -> Option<i64>

Looks up a field and extracts it as i64.

pub fn get_str(&self, key: &str) -> Option<&str>

Looks up a field and extracts it as a string slice.

pub fn to_sink_payload(&self) -> Vec<u8>

Serialize for sink output: event_type + timestamp + data fields.

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Event

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Event

fn deserialize<__D>( __deserializer: __D, ) -> Result<Event, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<&Event> for SerializableEvent

fn from(event: &Event) -> Self

Converts to this type from the input type.

impl From<HVACStatus> for Event

fn from(s: HVACStatus) -> Self

Converts to this type from the input type.

impl From<HumidityReading> for Event

fn from(r: HumidityReading) -> Self

Converts to this type from the input type.

impl From<SerializableEvent> for Event

fn from(se: SerializableEvent) -> Self

Converts to this type from the input type.

impl From<TemperatureReading> for Event

fn from(r: TemperatureReading) -> Self

Converts to this type from the input type.

impl Serialize for Event

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

where __S: Serializer,

Serialize this value into the given Serde serializer.