Package org.apache.hadoop.yarn.api.records.timelineservice

Class TimelineMetricCalculator

java.lang.Object

org.apache.hadoop.yarn.api.records.timelineservice.TimelineMetricCalculator

public final class TimelineMetricCalculator
extends java.lang.Object

A calculator for timeline metrics.

Method Summary

Modifier and Type	Method	Description
static int	compare(java.lang.Number n1, java.lang.Number n2)	Compare two not-null numbers.
static java.lang.Number	sub(java.lang.Number n1, java.lang.Number n2)	Subtract operation between two Numbers.
static java.lang.Number	sum(java.lang.Number n1, java.lang.Number n2)	Sum up two Numbers.

Methods inherited from class java.lang.Object

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

Method Detail

compare

public static int compare(java.lang.Number n1,
                          java.lang.Number n2)

Compare two not-null numbers.

Parameters:

n1 - Number n1

n2 - Number n2

Returns:

0 if n1 equals n2, a negative int if n1 is less than n2, a positive int otherwise.

sub

public static java.lang.Number sub(java.lang.Number n1,
                                   java.lang.Number n2)

Subtract operation between two Numbers.

Parameters:

n1 - Number n1

n2 - Number n2

Returns:

Number represent to (n1 - n2).

sum

public static java.lang.Number sum(java.lang.Number n1,
                                   java.lang.Number n2)

Sum up two Numbers.

Parameters:

n1 - Number n1

n2 - Number n2

Returns:

Number represent to (n1 + n2).