org.calrissian.accumulorecipes.metricsstore.ext.custom.function

Class StatsFunction

java.lang.Object

org.calrissian.accumulorecipes.metricsstore.ext.custom.function.StatsFunction

All Implemented Interfaces:

MetricFunction<long[]>

public class StatsFunction
extends Object
implements MetricFunction<long[]>

Custom metric function that calculates the min, max, sum, and count of all the values (in that order).

Constructor Summary

Constructors

Constructor and Description
StatsFunction()

Method Summary

Methods

Modifier and Type	Method and Description
long[]	deserialize(byte[] data) Deserialize the given metric.
void	merge(long[] value) Merges the two metrics together.
void	reset()
byte[]	serialize() Serialize the given metric
void	update(long value) Updates the original metric with the given value.

Methods inherited from class java.lang.Object

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

Constructor Detail

StatsFunction

public StatsFunction()

Method Detail

reset

public void reset()

Specified by:

reset in interface MetricFunction<long[]>

update

public void update(long value)

Updates the original metric with the given value.

Specified by:

update in interface MetricFunction<long[]>

merge

public void merge(long[] value)

Merges the two metrics together. TODO With no iterator settings specified during compactions, this should never happen and we can use more complex iterable math functions.

Specified by:

merge in interface MetricFunction<long[]>

serialize

public byte[] serialize()

Serialize the given metric

Specified by:

serialize in interface MetricFunction<long[]>

Returns:

deserialize

public long[] deserialize(byte[] data)

Deserialize the given metric.

Specified by:

deserialize in interface MetricFunction<long[]>

Returns: