co.cask.cdap.dq.functions

Class HistogramWithBucketing

java.lang.Object

co.cask.cdap.dq.functions.HistogramWithBucketing

All Implemented Interfaces:

BasicAggregationFunction<Map<Map.Entry<Double,Double>,Integer>>

public class HistogramWithBucketing
extends Object
implements BasicAggregationFunction<Map<Map.Entry<Double,Double>,Integer>>

Aggregation function creates a histogram with custom bucketing for numbers - no categorical data

Field Summary

Fields

Modifier and Type	Field and Description
Map<Map.Entry<Double,Double>,Long>	histogram

Constructor Summary

Constructors

Constructor and Description
HistogramWithBucketing()

Method Summary

Methods

Modifier and Type	Method and Description
void	add(DataQualityWritable value) Incrementally add values to the aggregation
byte[]	aggregate() Return the aggregation accumulated using add() in the form of a byte[]
Map<Map.Entry<Double,Double>,Integer>	deserialize(byte[] serializedValue) Deserialize a given value appropriately

Methods inherited from class java.lang.Object

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

Field Detail

histogram

public Map<Map.Entry<Double,Double>,Long> histogram

Constructor Detail

HistogramWithBucketing

public HistogramWithBucketing()

Method Detail

add

public void add(DataQualityWritable value)

Description copied from interface: BasicAggregationFunction

Incrementally add values to the aggregation

Specified by:

add in interface BasicAggregationFunction<Map<Map.Entry<Double,Double>,Integer>>

aggregate

public byte[] aggregate()

Description copied from interface: BasicAggregationFunction

Return the aggregation accumulated using add() in the form of a byte[]

Specified by:

aggregate in interface BasicAggregationFunction<Map<Map.Entry<Double,Double>,Integer>>

deserialize

public Map<Map.Entry<Double,Double>,Integer> deserialize(byte[] serializedValue)

Description copied from interface: BasicAggregationFunction

Deserialize a given value appropriately

Specified by:

deserialize in interface BasicAggregationFunction<Map<Map.Entry<Double,Double>,Integer>>