quarks.analytics.math3.stat

Class JsonStorelessStatistic

java.lang.Object

quarks.analytics.math3.stat.JsonStorelessStatistic

All Implemented Interfaces:

JsonUnivariateAggregator

public class JsonStorelessStatistic
extends java.lang.Object
implements JsonUnivariateAggregator

JSON univariate aggregator implementation wrapping a StorelessUnivariateStatistic.

Constructor Summary

Constructors

Constructor and Description
JsonStorelessStatistic(Statistic stat, org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatistic statImpl)

Method Summary

Modifier and Type	Method and Description
void	clear(com.google.gson.JsonElement partition, int n) Clear the aggregator to prepare for a new aggregation.
void	increment(double v) Add a value to the aggregation.
void	result(com.google.gson.JsonElement partition, com.google.gson.JsonObject result) Place the result of the aggregation into the result object.

Methods inherited from class java.lang.Object

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

Constructor Detail

JsonStorelessStatistic

public JsonStorelessStatistic(Statistic stat,
                              org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatistic statImpl)

Method Detail

clear

public void clear(com.google.gson.JsonElement partition,
                  int n)

Description copied from interface: JsonUnivariateAggregator

Clear the aggregator to prepare for a new aggregation.

Specified by:

clear in interface JsonUnivariateAggregator

Parameters:

partition - Partition key.

n - Number of tuples to be aggregated.

increment

public void increment(double v)

Description copied from interface: JsonUnivariateAggregator

Add a value to the aggregation.

Specified by:

increment in interface JsonUnivariateAggregator

Parameters:

v - Value to be added.

result

public void result(com.google.gson.JsonElement partition,
                   com.google.gson.JsonObject result)

Description copied from interface: JsonUnivariateAggregator

Place the result of the aggregation into the result object. The key for the result must be JsonUnivariateAggregate.name() for the corresponding aggregate. The value of the aggregation may be a primitive value such as a double or any valid JSON element.

Specified by:

result in interface JsonUnivariateAggregator

Parameters:

partition - Partition key.

result - JSON object holding the result.