Struct EventQuery 

pub struct EventQuery { /* private fields */ }

Immutable query view over a snapshot of ObservabilityEvent values.

EventQuery is intentionally in-process and host-owned. It is useful for tests, demos, and small local dashboards; production exporters should keep using tracing sinks and external stores.

Implementations

impl EventQuery

pub fn new(events: Vec<ObservabilityEvent>) -> Self

Build a query view over events in their existing order.

pub fn all(&self) -> &[ObservabilityEvent]

Return all events in snapshot order.

pub fn len(&self) -> usize

Return the number of events in this snapshot.

pub fn is_empty(&self) -> bool

Return true when this snapshot has no events.

pub fn filter(&self, filter: &EventFilter) -> Vec<ObservabilityEvent>

Return all events matching filter in snapshot order.

pub fn latest(&self, limit: usize) -> Vec<ObservabilityEvent>

Return up to limit most recent events in ascending snapshot order.

pub fn count_by_kind(&self) -> BTreeMap<String, usize>

Count events by wire event kind.

pub fn conversations(&self) -> Vec<String>

Return conversation identifiers present in this snapshot.

Trait Implementations

impl Clone for EventQuery

fn clone(&self) -> EventQuery

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EventQuery

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

Formats the value using the given formatter.

impl Default for EventQuery

fn default() -> EventQuery

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for EventQuery

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<Vec<ObservabilityEvent>> for EventQuery

fn from(events: Vec<ObservabilityEvent>) -> Self

Converts to this type from the input type.

impl PartialEq for EventQuery

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for EventQuery

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for EventQuery