Struct CombinedState 

pub struct CombinedState<V, TS = u64>
where
    V: Clone + Debug + Ord,
    TS: Clone + Debug + Ord,
{ /* private fields */ }

State container holding the latest values from multiple combined streams.

Used by operators that combine multiple streams such as combine_latest, with_latest_from, and emit_when.

Each value is paired with its original timestamp, enabling detection of transient states when combining multiple subscribers from the same shared source.

Examples

use fluxion_stream::CombinedState;

let state = CombinedState::new(vec![(1, 100u64), (2, 100u64), (3, 100u64)], 100u64);
assert_eq!(state.values().len(), 3);
assert_eq!(state.values()[0], 1);
// All timestamps match - this is a stable state
assert!(state.timestamps().iter().all(|ts| *ts == 100));

Implementations

impl<V, TS> CombinedState<V, TS>

where V: Clone + Debug + Ord, TS: Clone + Debug + Ord,

pub fn new(state: Vec<(V, TS)>, timestamp: TS) -> Self

Creates a new CombinedState with the given vector of value-timestamp pairs and max timestamp.

pub fn values(&self) -> Vec<V>

Returns the values as a vector.

If you need access to individual timestamps, use pairs() or timestamps() instead.

pub fn timestamps(&self) -> Vec<TS>

Returns the values as a vector of timestamps.

pub fn pairs(&self) -> &[(V, TS)]

Returns a slice of the raw value-timestamp pairs.

pub fn len(&self) -> usize

Returns the number of streams in the combined state.

pub fn is_empty(&self) -> bool

Returns true if there are no streams in the combined state.

Trait Implementations

impl<V, TS> Clone for CombinedState<V, TS>

where V: Clone + Debug + Ord + Clone, TS: Clone + Debug + Ord + Clone,

fn clone(&self) -> CombinedState<V, TS>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<V, TS> Debug for CombinedState<V, TS>

where V: Clone + Debug + Ord + Debug, TS: Clone + Debug + Ord + Debug,

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

Formats the value using the given formatter.

impl<V, TS> HasTimestamp for CombinedState<V, TS>

where V: Clone + Debug + Ord, TS: Clone + Debug + Ord + Copy + Send + Sync,

type Timestamp = TS

The type representing the timestamp

fn timestamp(&self) -> Self::Timestamp

Returns the timestamp value for this item. Stream operators use this to determine the order of items.

impl<V, TS> Ord for CombinedState<V, TS>

where V: Clone + Debug + Ord + Ord, TS: Clone + Debug + Ord + Ord,

fn cmp(&self, other: &CombinedState<V, TS>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<V, TS> PartialEq for CombinedState<V, TS>

where V: Clone + Debug + Ord + PartialEq, TS: Clone + Debug + Ord + PartialEq,

fn eq(&self, other: &CombinedState<V, TS>) -> 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<V, TS> PartialOrd for CombinedState<V, TS>

where V: Clone + Debug + Ord + PartialOrd, TS: Clone + Debug + Ord + PartialOrd,

fn partial_cmp(&self, other: &CombinedState<V, TS>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<V, TS> Timestamped for CombinedState<V, TS>

where V: Clone + Debug + Ord, TS: Clone + Debug + Ord + Copy + Send + Sync,

type Inner = CombinedState<V, TS>

The type of the inner value wrapped by this timestamped type

fn with_timestamp(value: Self::Inner, timestamp: Self::Timestamp) -> Self

Creates a new instance wrapping the given value with the specified timestamp.

fn into_inner(self) -> Self::Inner

Consumes self and returns the inner value. For wrapper types like Sequenced<T>, this extracts T. For domain types where Inner = Self, this typically returns self.

impl<V, TS> Eq for CombinedState<V, TS>

where V: Clone + Debug + Ord + Eq, TS: Clone + Debug + Ord + Eq,

impl<V, TS> StructuralPartialEq for CombinedState<V, TS>

where V: Clone + Debug + Ord, TS: Clone + Debug + Ord,