Struct InstanceAggregation

pub struct InstanceAggregation {
    pub target: StreamReference,
    pub caller: StreamReference,
    pub selection: InstanceSelection,
    pub aggr: InstanceOperation,
    pub reference: WindowReference,
    pub ty: Type,
    pub origin: Origin,
    pub pacing: PacingType,
}

Represents an instance of an instance aggregation

Fields

target: StreamReference

The stream whose values will be aggregated

caller: StreamReference

The stream calling and evaluating this window

selection: InstanceSelection

A filter over the instances

aggr: InstanceOperation

The operation to be performed over the instances

reference: WindowReference

The reference of this window.

ty: Type

The type of value the window produces

origin: Origin

The origin of the instance window expression

pacing: PacingType

The pacing of the instance aggregation expression

Trait Implementations

impl Clone for InstanceAggregation

fn clone(&self) -> InstanceAggregation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InstanceAggregation

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for InstanceAggregation

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for InstanceAggregation

fn eq(&self, other: &InstanceAggregation) -> 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 Serialize for InstanceAggregation

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Window for InstanceAggregation

fn target(&self) -> StreamReference

Returns a reference to the stream that will be aggregated by that window.

fn caller(&self) -> StreamReference

Returns a reference to the stream in which expression this window occurs.

fn op(&self) -> WindowOperation

Returns the aggregation operation the window uses.

fn ty(&self) -> &Type

Returns the type of value the window produces.

fn memory_bound(&self) -> MemorizationBound

Returns the memorization bound of the window.

impl StructuralPartialEq for InstanceAggregation