Enum DataUpdate 

pub enum DataUpdate {
    NewBars {
        symbol: String,
        bars: Vec<Bar>,
    },
    HistoricalBars {
        symbol: String,
        bars: Vec<Bar>,
    },
    FullDataset {
        symbol: String,
        bars: Vec<Bar>,
    },
    SymbolsChanged(Vec<String>),
    ConnStatus(bool),
}

An incremental data update returned by DataSource::poll.

The chart engine pattern-matches on these variants to decide how to merge incoming data into its internal bar buffer.

Variants

NewBars

New bars appended to the right edge (live / streaming data).

Fields

symbol: String

Symbol the bars belong to.

bars: Vec<Bar>

One or more new bars, ordered oldest-first.

HistoricalBars

Historical bars prepended to the left edge (lazy-loaded older data).

Fields

symbol: String

Symbol the bars belong to.

bars: Vec<Bar>

Older bars, ordered oldest-first.

FullDataset

Full dataset replacement (initial load or symbol/timeframe change).

Fields

symbol: String

Symbol the dataset belongs to.

bars: Vec<Bar>

Complete bar series, ordered oldest-first.

SymbolsChanged(Vec<String>)

The set of available symbols has changed.

ConnStatus(bool)

Connection status changed (true = connected, false = disconnected).

Trait Implementations

impl Clone for DataUpdate

fn clone(&self) -> DataUpdate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataUpdate

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

Formats the value using the given formatter.