io.druid.query.aggregation.histogram

Class ApproximateHistogramPostAggregator

java.lang.Object

io.druid.query.aggregation.histogram.ApproximateHistogramPostAggregator

All Implemented Interfaces:

io.druid.java.util.common.Cacheable, PostAggregator

Direct Known Subclasses:

BucketsPostAggregator, CustomBucketsPostAggregator, EqualBucketsPostAggregator, MaxPostAggregator, MinPostAggregator, QuantilePostAggregator, QuantilesPostAggregator

public abstract class ApproximateHistogramPostAggregator
extends Object
implements PostAggregator

Field Summary

Fields

Modifier and Type	Field and Description
protected String	fieldName
protected String	name

Constructor Summary

Constructors

Constructor and Description
ApproximateHistogramPostAggregator(String name, String fieldName)

Method Summary

Modifier and Type	Method and Description
abstract Object	compute(Map<String,Object> values)
Comparator	getComparator()
String	getFieldName()
String	getName()
abstract String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.druid.query.aggregation.PostAggregator

decorate, getDependentFields

Methods inherited from interface io.druid.java.util.common.Cacheable

getCacheKey

Field Detail

name

protected final String name

fieldName

protected final String fieldName

Constructor Detail

ApproximateHistogramPostAggregator

public ApproximateHistogramPostAggregator(String name,
                                          String fieldName)

Method Detail

getComparator

public Comparator getComparator()

Specified by:

getComparator in interface PostAggregator

compute

public abstract Object compute(Map<String,Object> values)

Specified by:

compute in interface PostAggregator

getName

public String getName()

Specified by:

getName in interface PostAggregator

getFieldName

public String getFieldName()

toString

public abstract String toString()

Overrides:

toString in class Object