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OrderedGroupAddAggregator

pipebase::map

Struct OrderedGroupAddAggregator 

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pub struct OrderedGroupAddAggregator {}
Expand description

Group added result by ordered key

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impl ConfigInto<OrderedGroupAddAggregator> for OrderedGroupAddAggregatorConfig

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fn config_into<'async_trait>( self, ) -> Pin<Box<dyn Future<Output = Result<T>> + Send + 'async_trait>>
where Self: Send + 'async_trait,

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impl FromConfig<OrderedGroupAddAggregatorConfig> for OrderedGroupAddAggregator

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fn from_config<'async_trait>( _config: OrderedGroupAddAggregatorConfig, ) -> Pin<Box<dyn Future<Output = Result<Self>> + Send + 'async_trait>>
where Self: 'async_trait,

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impl<I, T, K, V> GroupAggregate<I, T, K, V, Vec<Pair<K, V>>, BTreeMap<K, V>> for OrderedGroupAddAggregator
where I: GroupAs<K> + AggregateAs<V>, T: IntoIterator<Item = I>, K: Ord, V: AddAssign<V> + Init + Clone,

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fn merge(&self, v: &mut V, i: &I)

Merge items per group using +=

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fn group_table(&self) -> Result<BTreeMap<K, V>>

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fn operate(&self, _v: &mut V)

Post merge operation
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fn group_aggregate(&self, t: T) -> Result<U>

Group aggregate items Read more
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impl<I, T, K, V> Map<T, Vec<Pair<K, V>>, OrderedGroupAddAggregatorConfig> for OrderedGroupAddAggregator
where I: GroupAs<K> + AggregateAs<V>, K: Ord, V: AddAssign<V> + Init + Clone, T: IntoIterator<Item = I> + Send + 'static,

§Parameters

  • T: input
  • Vec<Pair<K, V>>: output
  • K: group value
  • V: aggregate value
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fn map<'life0, 'async_trait>( &'life0 mut self, data: T, ) -> Pin<Box<dyn Future<Output = Result<Vec<Pair<K, V>>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

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