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.

Examples

use fluxion_stream::CombinedState;

let state = CombinedState::new(vec![1, 2, 3], 0);
assert_eq!(state.values().len(), 3);
assert_eq!(state.values()[0], 1);

Implementations

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

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

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

Creates a new CombinedState with the given vector of values and timestamp.

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

Returns a reference to the internal values vector.

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 Inner = CombinedState<V, TS>

The type of the inner value wrapped by this timestamped type

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,

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

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

fn with_fresh_timestamp(value: Self::Inner) -> Self

Creates a new instance wrapping the given value with a fresh timestamp. This is called by operators when emitting new values. Each implementation determines how to generate fresh timestamps (e.g., Utc::now() for chrono, atomic counter for u64, etc.)

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,