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FixedKeyProcessorContext

crabka_client_streams::processor::fixed_key

Struct FixedKeyProcessorContext 

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pub struct FixedKeyProcessorContext<'a, 'ctx, 'd, K, VOut> { /* private fields */ }
Expand description

Handed to a FixedKeyProcessor::process. The only forward re-attaches the (unchanged) key, so a fixed-key processor cannot accidentally repartition. All other accessors delegate verbatim to the underlying ProcessorContext.

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impl<'a, 'ctx, 'd, K, VOut> FixedKeyProcessorContext<'a, 'ctx, 'd, K, VOut>
where K: Any + Send + Clone, VOut: Any + Send + Clone,

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pub fn forward(&mut self, record: FixedKeyRecord<K, VOut>)

Forward a record downstream, re-attaching the (unchanged) key. Mirrors the JVM FixedKeyProcessorContext.forward(FixedKeyRecord).

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pub fn get_state_store<K2: Send + Sync + 'static, V2: Send + 'static>( &mut self, name: &str, ) -> Option<&mut dyn KeyValueStore<K2, V2>>

Access a connected key/value state store, typed. Delegates to ProcessorContext::get_state_store. (Window/session-store accessors are omitted: no DSL path connects those to a process_values node yet.)

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pub fn record_context(&self) -> &RecordContext

Metadata of the source record currently being processed.

Auto Trait Implementations§

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impl<'a, 'ctx, 'd, K, VOut> !RefUnwindSafe for FixedKeyProcessorContext<'a, 'ctx, 'd, K, VOut>

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impl<'a, 'ctx, 'd, K, VOut> !Sync for FixedKeyProcessorContext<'a, 'ctx, 'd, K, VOut>

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impl<'a, 'ctx, 'd, K, VOut> !UnwindSafe for FixedKeyProcessorContext<'a, 'ctx, 'd, K, VOut>

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impl<'a, 'ctx, 'd, K, VOut> Freeze for FixedKeyProcessorContext<'a, 'ctx, 'd, K, VOut>

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impl<'a, 'ctx, 'd, K, VOut> Send for FixedKeyProcessorContext<'a, 'ctx, 'd, K, VOut>

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impl<'a, 'ctx, 'd, K, VOut> Unpin for FixedKeyProcessorContext<'a, 'ctx, 'd, K, VOut>

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impl<'a, 'ctx, 'd, K, VOut> UnsafeUnpin for FixedKeyProcessorContext<'a, 'ctx, 'd, K, VOut>

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