Module org.elasticsearch.server

Package org.elasticsearch.search.aggregations.metrics

Class CardinalityAggregatorFactory

java.lang.Object

org.elasticsearch.search.aggregations.AggregatorFactory

org.elasticsearch.search.aggregations.support.ValuesSourceAggregatorFactory

org.elasticsearch.search.aggregations.metrics.CardinalityAggregatorFactory

public class CardinalityAggregatorFactory
extends ValuesSourceAggregatorFactory

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	CardinalityAggregatorFactory.ExecutionMode

Field Summary

Fields inherited from class org.elasticsearch.search.aggregations.support.ValuesSourceAggregatorFactory

config

Fields inherited from class org.elasticsearch.search.aggregations.AggregatorFactory

context, factories, metadata, name, parent

Method Summary

Modifier and Type	Method	Description
protected Aggregator	createUnmapped(Aggregator parent, Map<String,Object> metadata)	Create the Aggregator for a ValuesSource that doesn't have values.
protected Aggregator	doCreateInternal(Aggregator parent, CardinalityUpperBound cardinality, Map<String,Object> metadata)	Create the Aggregator for a ValuesSource that has values.
static void	registerAggregators(ValuesSourceRegistry.Builder builder)

Methods inherited from class org.elasticsearch.search.aggregations.support.ValuesSourceAggregatorFactory

createInternal, getStatsSubtype

Methods inherited from class org.elasticsearch.search.aggregations.AggregatorFactory

create, getParent, getSamplingContext, name

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

registerAggregators

public static void registerAggregators(ValuesSourceRegistry.Builder builder)

createUnmapped

protected Aggregator createUnmapped(Aggregator parent,
 Map<String,Object> metadata)
                             throws IOException

Description copied from class: ValuesSourceAggregatorFactory

Create the Aggregator for a ValuesSource that doesn't have values.

Specified by:

createUnmapped in class ValuesSourceAggregatorFactory

Throws:

IOException

doCreateInternal

protected Aggregator doCreateInternal(Aggregator parent,
 CardinalityUpperBound cardinality,
 Map<String,Object> metadata)
                               throws IOException

Description copied from class: ValuesSourceAggregatorFactory

Create the Aggregator for a ValuesSource that has values.

Specified by:

doCreateInternal in class ValuesSourceAggregatorFactory

cardinality - Upper bound of the number of owningBucketOrds that the Aggregator created by this method will be asked to collect.

Throws:

IOException