Package org.elasticsearch.search.aggregations.bucket

Class InternalSingleBucketAggregation

java.lang.Object

org.elasticsearch.search.aggregations.InternalAggregation

org.elasticsearch.search.aggregations.bucket.InternalSingleBucketAggregation

All Implemented Interfaces:

NamedWriteable, Writeable, ToXContent, ToXContentFragment, Aggregation, SingleBucketAggregation, HasAggregations

Direct Known Subclasses:

InternalFilter, InternalGlobal, InternalMissing, InternalNested, InternalReverseNested, InternalSampler

public abstract class InternalSingleBucketAggregation
extends InternalAggregation
implements SingleBucketAggregation

A base class for all the single bucket aggregations.

Nested Class Summary

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

InternalAggregation.ReduceContext

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

Aggregation.CommonFields

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

ToXContent.DelegatingMapParams, ToXContent.MapParams, ToXContent.Params

Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable

Writeable.Reader<V>, Writeable.Writer<V>

Field Summary

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

metaData, name

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

TYPED_KEYS_DELIMITER

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

EMPTY_PARAMS

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	InternalSingleBucketAggregation(java.lang.String name, long docCount, InternalAggregations aggregations, java.util.List<PipelineAggregator> pipelineAggregators, java.util.Map<java.lang.String,java.lang.Object> metaData)	Creates a single bucket aggregation.
protected	InternalSingleBucketAggregation(StreamInput in)	Read from a stream.

Method Summary

Modifier and Type	Method	Description
InternalSingleBucketAggregation	create(InternalAggregations subAggregations)	Create a new copy of this Aggregation with the same settings as this Aggregation and contains the provided sub-aggregations.
protected void	doWriteTo(StreamOutput out)
XContentBuilder	doXContentBody(XContentBuilder builder, ToXContent.Params params)
boolean	equals(java.lang.Object obj)
InternalAggregations	getAggregations()
long	getDocCount()
java.lang.Object	getProperty(java.util.List<java.lang.String> path)
int	hashCode()
protected abstract InternalSingleBucketAggregation	newAggregation(java.lang.String name, long docCount, InternalAggregations subAggregations)	Create a new empty sub aggregation.
InternalAggregation	reduce(java.util.List<InternalAggregation> aggregations, InternalAggregation.ReduceContext reduceContext)	Reduces the given aggregations to a single one and returns it.
InternalAggregation	reducePipelines(InternalAggregation reducedAggs, InternalAggregation.ReduceContext reduceContext)	Unlike InternalAggregation.reducePipelines(InternalAggregation, ReduceContext), a single-bucket agg needs to first reduce the aggs in it's bucket (and their parent pipelines) before allowing sibling pipelines to reduce

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

getMetaData, getName, getProperty, getType, isMapped, pipelineAggregators, readSize, toString, toXContent, writeSize, writeTo

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

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

getMetaData, getName, getType

Methods inherited from interface org.elasticsearch.common.io.stream.NamedWriteable

getWriteableName

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

toXContent

Methods inherited from interface org.elasticsearch.common.xcontent.ToXContentFragment

isFragment

Constructor Details

InternalSingleBucketAggregation

protected InternalSingleBucketAggregation(java.lang.String name, long docCount, InternalAggregations aggregations, java.util.List<PipelineAggregator> pipelineAggregators, java.util.Map<java.lang.String,java.lang.Object> metaData)

Creates a single bucket aggregation.

Parameters:

name - The aggregation name.

docCount - The document count in the single bucket.

aggregations - The already built sub-aggregations that are associated with the bucket.

InternalSingleBucketAggregation

protected InternalSingleBucketAggregation(StreamInput in) throws java.io.IOException

Read from a stream.

Throws:

java.io.IOException

Method Details

doWriteTo

protected void doWriteTo(StreamOutput out) throws java.io.IOException

Specified by:

doWriteTo in class InternalAggregation

Throws:

java.io.IOException

getDocCount

public long getDocCount()

Specified by:

getDocCount in interface SingleBucketAggregation

Returns:

The number of documents in this bucket

getAggregations

public InternalAggregations getAggregations()

Specified by:

getAggregations in interface HasAggregations

Specified by:

getAggregations in interface SingleBucketAggregation

Returns:

The sub-aggregations of this bucket

create

public InternalSingleBucketAggregation create(InternalAggregations subAggregations)

Create a new copy of this Aggregation with the same settings as this Aggregation and contains the provided sub-aggregations.

Parameters:

subAggregations - the buckets to use in the new Aggregation

Returns:

the new Aggregation

newAggregation

protected abstract InternalSingleBucketAggregation newAggregation(java.lang.String name, long docCount, InternalAggregations subAggregations)

Create a new empty sub aggregation. This must be a new instance on each call.

reduce

public InternalAggregation reduce(java.util.List<InternalAggregation> aggregations, InternalAggregation.ReduceContext reduceContext)

Description copied from class: InternalAggregation

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

Specified by:

reduce in class InternalAggregation

reducePipelines

public final InternalAggregation reducePipelines(InternalAggregation reducedAggs, InternalAggregation.ReduceContext reduceContext)

Unlike InternalAggregation.reducePipelines(InternalAggregation, ReduceContext), a single-bucket agg needs to first reduce the aggs in it's bucket (and their parent pipelines) before allowing sibling pipelines to reduce

Overrides:

reducePipelines in class InternalAggregation

getProperty

public java.lang.Object getProperty(java.util.List<java.lang.String> path)

Specified by:

getProperty in class InternalAggregation

doXContentBody

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

Specified by:

doXContentBody in class InternalAggregation

Throws:

java.io.IOException

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class InternalAggregation

hashCode

public int hashCode()

Overrides:

hashCode in class InternalAggregation