Enum WindowKind 

pub enum WindowKind {
    Tumbling {
        size: WindowSize,
    },
    Sliding {
        size: WindowSize,
        slide: WindowSize,
    },
    Rolling {
        size: WindowSize,
    },
    Session {
        gap: Duration,
    },
}

A fully specified window kind. Each variant carries only the parameters that make sense for that kind.

Variants

Tumbling

Fixed-size, non-overlapping windows. Each event belongs to exactly one window.

Fields

size: WindowSize

Sliding

Fixed-size, overlapping windows. Each event can belong to multiple windows. Invariant: slide < size, and both must be the same measure type.

Fields

size: WindowSize

slide: WindowSize

Rolling

Continuously maintained window of the most recent N events or most recent T duration. One window per group. Triggers every event.

Fields

size: WindowSize

Session

Gap-based window. Stays open while events arrive within gap. Closes after gap duration of inactivity per group key.

Fields

gap: Duration

Implementations

impl WindowKind

pub fn size(&self) -> Option<&WindowSize>

Returns the primary size measure for Tumbling, Sliding, and Rolling. Returns None for Session (which uses gap instead).

Trait Implementations

impl Clone for WindowKind

fn clone(&self) -> WindowKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WindowKind

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WindowKind

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for WindowKind

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

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 WindowKind