org.elasticsearch.search.aggregations.metrics.cardinality

Class InternalCardinality

java.lang.Object

org.elasticsearch.search.aggregations.InternalAggregation

org.elasticsearch.search.aggregations.metrics.InternalMetricsAggregation

org.elasticsearch.search.aggregations.metrics.InternalNumericMetricsAggregation

org.elasticsearch.search.aggregations.metrics.InternalNumericMetricsAggregation.SingleValue

org.elasticsearch.search.aggregations.metrics.cardinality.InternalCardinality

All Implemented Interfaces:

Streamable, ToXContent, Aggregation, Cardinality, NumericMetricsAggregation, NumericMetricsAggregation.SingleValue

public final class InternalCardinality
extends InternalNumericMetricsAggregation.SingleValue
implements Cardinality

Nested Class Summary

Nested classes/interfaces inherited from class org.elasticsearch.search.aggregations.metrics.InternalNumericMetricsAggregation

InternalNumericMetricsAggregation.MultiValue, InternalNumericMetricsAggregation.SingleValue

Nested classes/interfaces inherited from class org.elasticsearch.search.aggregations.InternalAggregation

InternalAggregation.CommonFields, InternalAggregation.ReduceContext, InternalAggregation.Type

Nested classes/interfaces inherited from interface org.elasticsearch.search.aggregations.metrics.NumericMetricsAggregation

NumericMetricsAggregation.MultiValue, NumericMetricsAggregation.SingleValue

Nested classes/interfaces inherited from interface org.elasticsearch.common.xcontent.ToXContent

ToXContent.DelegatingMapParams, ToXContent.MapParams, ToXContent.Params

Field Summary

Fields

Modifier and Type	Field and Description
static AggregationStreams.Stream	STREAM
static InternalAggregation.Type	TYPE

Fields inherited from class org.elasticsearch.search.aggregations.metrics.InternalNumericMetricsAggregation

valueFormatter

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

name

Fields inherited from interface org.elasticsearch.common.xcontent.ToXContent

EMPTY_PARAMS

Method Summary

Modifier and Type	Method and Description
XContentBuilder	doXContentBody(XContentBuilder builder, ToXContent.Params params)
long	getValue() The number of unique terms.
void	merge(InternalCardinality other)
void	readFrom(StreamInput in)
InternalAggregation	reduce(InternalAggregation.ReduceContext reduceContext) Reduces the given addAggregation to a single one and returns it.
static void	registerStreams()
InternalAggregation.Type	type()
double	value()
void	writeTo(StreamOutput out)

Methods inherited from class org.elasticsearch.search.aggregations.metrics.InternalNumericMetricsAggregation.SingleValue

getValueAsString

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

getName, readSize, toXContent, writeSize

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.search.aggregations.metrics.NumericMetricsAggregation.SingleValue

getValueAsString

Methods inherited from interface org.elasticsearch.search.aggregations.Aggregation

getName

Field Detail

TYPE

public static final InternalAggregation.Type TYPE

STREAM

public static final AggregationStreams.Stream STREAM

Method Detail

registerStreams

public static void registerStreams()

value

public double value()

Specified by:

value in interface NumericMetricsAggregation.SingleValue

getValue

public long getValue()

Description copied from interface: Cardinality

The number of unique terms.

Specified by:

getValue in interface Cardinality

type

public InternalAggregation.Type type()

Specified by:

type in class InternalAggregation

Returns:

The InternalAggregation.Type of this aggregation

readFrom

public void readFrom(StreamInput in)
              throws IOException

Specified by:

readFrom in interface Streamable

Throws:

IOException

writeTo

public void writeTo(StreamOutput out)
             throws IOException

Specified by:

writeTo in interface Streamable

Throws:

IOException

reduce

public InternalAggregation reduce(InternalAggregation.ReduceContext reduceContext)

Description copied from class: InternalAggregation

Reduces the given addAggregation to a single one and returns it. In most cases, the assumption will be the all given addAggregation are of the same type (the same type as this aggregation). For best efficiency, when implementing, try reusing an existing get instance (typically the first in the given list) to save on redundant object construction.

Specified by:

reduce in class InternalAggregation

merge

public void merge(InternalCardinality other)

doXContentBody

public XContentBuilder doXContentBody(XContentBuilder builder,
                                      ToXContent.Params params)
                               throws IOException

Specified by:

doXContentBody in class InternalAggregation

Throws:

IOException