Package com.yahoo.statistics

Class CounterGroup

java.lang.Object

com.yahoo.statistics.Handle

com.yahoo.statistics.CounterGroup

public class CounterGroup
extends Handle

A set of associated counters.

Author:

Steinar Knutsen

Constructor Summary

Constructors

Constructor	Description
CounterGroup(java.lang.String name, Statistics manager)
CounterGroup(java.lang.String name, Statistics manager, boolean fetchParametersFromConfig)	Create a basic group of counter which may or may not depend on config.
CounterGroup(java.lang.String name, Statistics manager, boolean fetchParametersFromConfig, Callback callback, boolean resetCounter)	Create a group of counters with a callback included.

Method Summary

Modifier and Type	Method	Description
boolean	equals(java.lang.Object o)
int	hashCode()
void	increment(java.lang.String name)	Increment named contained counter by 1.
void	increment(java.lang.String name, long n)	Increment named contained counter by n.
void	runHandle()	Dump contained counters to log and reset.

Methods inherited from class com.yahoo.statistics.Handle

cancel, isCancelled, run, runCallback

Methods inherited from class java.lang.Object

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

Constructor Detail

CounterGroup

public CounterGroup(java.lang.String name,
                    Statistics manager)

Parameters:

name - The symbolic name of this group of counters.

CounterGroup

public CounterGroup(java.lang.String name,
                    Statistics manager,
                    boolean fetchParametersFromConfig)

Create a basic group of counter which may or may not depend on config.

Parameters:

name - The symbolic name of this group of counters.

manager - the statistics manager acquired by injection

fetchParametersFromConfig - Whether this Group should be configured from config.

CounterGroup

public CounterGroup(java.lang.String name,
                    Statistics manager,
                    boolean fetchParametersFromConfig,
                    Callback callback,
                    boolean resetCounter)

Create a group of counters with a callback included.

Parameters:

name - The symbolic name of this group of counters.

manager - the statistics manager acquired by injection

fetchParametersFromConfig - Whether this Group should be configured from config.

callback - will be invoked each time data is written to the log

resetCounter - Control for if this group should be reset between each logging interval.

Method Detail

increment

public void increment(java.lang.String name)

Increment named contained counter by 1.

increment

public void increment(java.lang.String name,
                      long n)

Increment named contained counter by n.

runHandle

public void runHandle()

Dump contained counters to log and reset.

Specified by:

runHandle in class Handle

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in class Handle

hashCode

public int hashCode()

Specified by:

hashCode in class Handle