Class CountAggregator<K, V>

Calculates a number of values in an entry set.

Type Parameters

K = any
V = any

Hierarchy

EntryAggregator<K, V, number>
- CountAggregator

Index

Constructors

Properties

@class extractor?

Methods

Constructors

constructor

new CountAggregator<K, V>(): CountAggregator<K, V>
Constructs a new CountAggregator.
Type Parameters
- K = any
- V = any
Returns CountAggregator<K, V>

Overrides EntryAggregator.constructor

Properties

`Protected` @class

@class: string

Server-side EntryAggregator implementation type identifier.

`Protected` `Optional` extractor

extractor?: ValueExtractor

The ValueExtractor to apply when aggregating results.

Methods

andThen

andThen(aggregator: EntryAggregator<K, V, number>): EntryAggregator<K, V, number>
Returns a CompositeAggregator comprised of this and the provided aggregator.

Returns
a CompositeAggregator comprised of this and the provided aggregator
Parameters
- aggregator: EntryAggregator<K, V, number>
  
  the next aggregator
Returns EntryAggregator<K, V, number>

Inherited from EntryAggregator.andThen