Package org.elasticsearch.search.aggregations.bucket.histogram

Class HistogramAggregatorFactory

java.lang.Object

org.elasticsearch.search.aggregations.AggregatorFactory

org.elasticsearch.search.aggregations.support.ValuesSourceAggregatorFactory

org.elasticsearch.search.aggregations.bucket.histogram.HistogramAggregatorFactory

public final class HistogramAggregatorFactory
extends ValuesSourceAggregatorFactory

Constructs the per-shard aggregator instance for histogram aggregation. Selects the numeric or range field implementation based on the field type.

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

Constructor Summary

Constructors

Constructor	Description
HistogramAggregatorFactory(String name, ValuesSourceConfig config, double interval, double offset, BucketOrder order, boolean keyed, long minDocCount, DoubleBounds extendedBounds, DoubleBounds hardBounds, AggregationContext context, AggregatorFactory parent, AggregatorFactories.Builder subFactoriesBuilder, Map<String,Object> metadata, HistogramAggregatorSupplier aggregatorSupplier)

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.
long	minDocCount()

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

createInternal, getStatsSubtype

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

create, doValidate, getParent, name

Methods inherited from class java.lang.Object

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

Constructor Details

HistogramAggregatorFactory

public HistogramAggregatorFactory(String name,
 ValuesSourceConfig config,
 double interval,
 double offset,
 BucketOrder order,
 boolean keyed,
 long minDocCount,
 DoubleBounds extendedBounds,
 DoubleBounds hardBounds,
 AggregationContext context,
 AggregatorFactory parent,
 AggregatorFactories.Builder subFactoriesBuilder,
 Map<String,Object> metadata,
 HistogramAggregatorSupplier aggregatorSupplier)
                           throws IOException

Throws:

IOException

Method Details

minDocCount

public long minDocCount()

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

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