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DistributedWindowAggregator

oxirs_stream::distributed

Struct DistributedWindowAggregator 

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pub struct DistributedWindowAggregator { /* private fields */ }
Expand description

Aggregates windowed results from multiple cluster nodes.

Collects partial results from each node and merges them into a global aggregate once all expected contributions arrive or a force-flush is triggered.

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impl DistributedWindowAggregator

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pub fn new(expected_nodes: HashSet<String>, timeout: Duration) -> Self

Creates a new aggregator expecting results from the given nodes.

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pub fn submit_partial( &self, partial: PartialWindowResult, ) -> DistributedResult<Option<AggregatedWindowResult>>

Submits a partial result from a node.

Returns Some(AggregatedWindowResult) if all expected nodes have now contributed for this window; otherwise returns None.

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pub fn force_aggregate( &self, window_id: u64, ) -> DistributedResult<AggregatedWindowResult>

Forces aggregation for a window even if not all nodes have contributed.

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pub fn get_completed(&self, window_id: u64) -> Option<AggregatedWindowResult>

Returns a completed aggregate for a specific window, if available.

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pub fn drain_completed(&self) -> Vec<AggregatedWindowResult>

Drains and returns all completed window results in ascending window order.

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pub fn timeout(&self) -> Duration

Returns the configured aggregation timeout.

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