Struct SessionWindow 

pub struct SessionWindow { /* private fields */ }

A session window with dynamic boundaries based on activity gaps.

Implementations

impl SessionWindow

pub fn new(start: DateTime<Utc>, end: DateTime<Utc>, gap: Duration) -> Self

Creates a new session window.

pub fn from_element(timestamp: DateTime<Utc>, gap: Duration) -> Self

Creates a session window from a single element timestamp.

pub fn start(&self) -> DateTime<Utc>

Returns the start time.

pub fn end(&self) -> DateTime<Utc>

Returns the end time.

pub fn gap(&self) -> Duration

Returns the gap duration.

pub fn contains(&self, timestamp: DateTime<Utc>) -> bool

Returns true if this session contains the timestamp.

pub fn should_merge(&self, other: &SessionWindow) -> bool

Returns true if this session should merge with another.

pub fn merge(&self, other: &SessionWindow) -> Option<SessionWindow>

Merges this session with another.

pub fn extend(&mut self, timestamp: DateTime<Utc>)

Extends the session to include a new timestamp.

Trait Implementations

impl Clone for SessionWindow

fn clone(&self) -> SessionWindow

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SessionWindow

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

Formats the value using the given formatter.

impl Display for SessionWindow

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

Formats the value using the given formatter.

impl Hash for SessionWindow

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 PartialEq for SessionWindow

fn eq(&self, other: &Self) -> 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 WindowTrigger<SessionWindow> for SessionTrigger

fn on_element( &mut self, timestamp: DateTime<Utc>, window: &SessionWindow, ) -> TriggerResult

Called when an element is added to a window.

fn on_processing_time( &mut self, _time: DateTime<Utc>, _window: &SessionWindow, ) -> TriggerResult

Called when processing time advances.

fn on_event_time( &mut self, watermark: DateTime<Utc>, window: &SessionWindow, ) -> TriggerResult

Called when the watermark (event time) advances.

fn clear(&mut self, window: &SessionWindow)

Called when the trigger is cleared.

fn clone_trigger(&self) -> Box<dyn WindowTrigger<SessionWindow>>

Creates a clone of this trigger.

impl Eq for SessionWindow