de.is24.util.monitoring

Class Counter

java.lang.Object

de.is24.util.monitoring.Counter

All Implemented Interfaces:

Reportable

Direct Known Subclasses:

Timer

public class Counter
extends Object
implements Reportable

Counters are used to count events. Counters can only be incremented by 1

 Examples :
   number of XYZ errors / Exceptions
   number of handled events
   number of failed events
 

Author:

OSchmitz

Field Summary

Fields

Modifier and Type	Field and Description
private AtomicLong	count
private String	fName
private static org.apache.log4j.Logger	LOGGER

Constructor Summary

Constructors

Constructor and Description
Counter(String name) This class is only constructed by InApplicationMonitor

Method Summary

Methods

Modifier and Type	Method and Description
void	accept(ReportVisitor aVisitor) Implements the visitor pattern to read this Counter
long	getCount() get the value of this counter
String	getName()
void	increment() Increment the value of this counter by one
void	increment(long increment) Increase the counter by the specified amount.
void	initialize() Initialize with 0

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.apache.log4j.Logger LOGGER

fName

private final String fName

count

private final AtomicLong count

Constructor Detail

Counter

Counter(String name)

This class is only constructed by InApplicationMonitor

Parameters:

name - name of this Counter

Method Detail

accept

public void accept(ReportVisitor aVisitor)

Implements the visitor pattern to read this Counter

Specified by:

accept in interface Reportable

increment

public void increment()

Increment the value of this counter by one

increment

public void increment(long increment)

Increase the counter by the specified amount.

Parameters:

increment - the added to add

initialize

public void initialize()

Initialize with 0

getCount

public long getCount()

get the value of this counter

Returns:

current count.

getName

public String getName()

Specified by:

getName in interface Reportable

Returns:

name of this Counter.