org.elasticsearch.search.aggregations.pipeline

Class PipelineAggregator

java.lang.Object

org.elasticsearch.search.aggregations.pipeline.PipelineAggregator

All Implemented Interfaces:

Streamable

Direct Known Subclasses:

BucketScriptPipelineAggregator, BucketSelectorPipelineAggregator, CumulativeSumPipelineAggregator, DerivativePipelineAggregator, MovAvgPipelineAggregator, SerialDiffPipelineAggregator, SiblingPipelineAggregator

public abstract class PipelineAggregator
extends Object
implements Streamable

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	PipelineAggregator.Parser Parses the pipeline aggregation request and creates the appropriate pipeline aggregator factory for it.

Field Summary

Fields

Modifier and Type	Field and Description
static com.google.common.base.Function<Aggregation,InternalAggregation>	AGGREGATION_TRANFORM_FUNCTION

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	PipelineAggregator()
protected	PipelineAggregator(String name, String[] bucketsPaths, Map<String,Object> metaData)

Method Summary

Modifier and Type	Method and Description
String[]	bucketsPaths()
protected abstract void	doReadFrom(StreamInput in)
protected abstract void	doWriteTo(StreamOutput out)
Map<String,Object>	metaData()
String	name()
void	readFrom(StreamInput in)
abstract InternalAggregation	reduce(InternalAggregation aggregation, InternalAggregation.ReduceContext reduceContext)
abstract InternalAggregation.Type	type()
void	writeTo(StreamOutput out)

Methods inherited from class java.lang.Object

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

Field Detail

AGGREGATION_TRANFORM_FUNCTION

public static final com.google.common.base.Function<Aggregation,InternalAggregation> AGGREGATION_TRANFORM_FUNCTION

Constructor Detail

PipelineAggregator

protected PipelineAggregator()

PipelineAggregator

protected PipelineAggregator(String name,
                             String[] bucketsPaths,
                             Map<String,Object> metaData)

Method Detail

name

public String name()

bucketsPaths

public String[] bucketsPaths()

metaData

public Map<String,Object> metaData()

type

public abstract InternalAggregation.Type type()

reduce

public abstract InternalAggregation reduce(InternalAggregation aggregation,
                                           InternalAggregation.ReduceContext reduceContext)

writeTo

public final void writeTo(StreamOutput out)
                   throws IOException

Specified by:

writeTo in interface Streamable

Throws:

IOException

doWriteTo

protected abstract void doWriteTo(StreamOutput out)
                           throws IOException

Throws:

IOException

readFrom

public final void readFrom(StreamInput in)
                    throws IOException

Specified by:

readFrom in interface Streamable

Throws:

IOException

doReadFrom

protected abstract void doReadFrom(StreamInput in)
                            throws IOException

Throws:

IOException