com.netflix.servo.monitor

Class StepCounter

java.lang.Object

com.netflix.servo.monitor.AbstractMonitor<java.lang.Number>

com.netflix.servo.monitor.StepCounter

All Implemented Interfaces:

Counter, Monitor<java.lang.Number>, NumericMonitor<java.lang.Number>

Direct Known Subclasses:

ResettableCounter

public class StepCounter
extends AbstractMonitor<java.lang.Number>
implements Counter

A simple counter implementation backed by a StepLong. The value returned is a rate for the previous interval as defined by the step.

Field Summary

Fields inherited from class com.netflix.servo.monitor.AbstractMonitor

config

Constructor Summary

Constructors

Constructor and Description
StepCounter(MonitorConfig config) Creates a new instance of the counter.
StepCounter(MonitorConfig config, Clock clock) Creates a new instance of the counter.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
long	getCount(int pollerIndex) Get the count for the last completed polling interval for the given poller index.
long	getCurrentCount(int pollerIndex) Get the current count for the given poller index.
java.lang.Number	getValue(int pollerIndex) Returns the current value for the monitor for the nth poller.
int	hashCode()
void	increment() Update the count by one.
void	increment(long amount) Update the count by the specified amount.
java.lang.String	toString()

Methods inherited from class com.netflix.servo.monitor.AbstractMonitor

getConfig, getValue

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.netflix.servo.monitor.Monitor

getConfig, getValue

Constructor Detail

StepCounter

public StepCounter(MonitorConfig config)

Creates a new instance of the counter.

StepCounter

public StepCounter(MonitorConfig config,
           Clock clock)

Creates a new instance of the counter.

Method Detail

increment

public void increment()

Update the count by one.

Specified by:

increment in interface Counter

increment

public void increment(long amount)

Update the count by the specified amount.

Specified by:

increment in interface Counter

getValue

public java.lang.Number getValue(int pollerIndex)

Returns the current value for the monitor for the nth poller.

Specified by:

getValue in interface Monitor<java.lang.Number>

getCount

public long getCount(int pollerIndex)

Get the count for the last completed polling interval for the given poller index.

getCurrentCount

public long getCurrentCount(int pollerIndex)

Get the current count for the given poller index.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object