co.cask.cdap.dq.functions

Interface BasicAggregationFunction<T>

Type Parameters:

T - Type of the aggregation

All Known Subinterfaces:

CombinableAggregationFunction<T>

All Known Implementing Classes:

DiscreteValuesHistogram, HistogramWithBucketing, Mean, StandardDeviation, UniqueValues

public interface BasicAggregationFunction<T>

Basic Aggregation Function Interface: All aggregation function classes -- combinable or non-combinable -- should implement these methods

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[]
T	deserialize(byte[] value) Deserialize a given value appropriately

Method Detail

add

void add(DataQualityWritable value)

Incrementally add values to the aggregation

aggregate

byte[] aggregate()

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

deserialize

T deserialize(byte[] value)

Deserialize a given value appropriately