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ro.nolimits.rue.util
Class OperationPerTimeCounter  

java.lang.Object
  ro.nolimits.rue.util.OperationPerTimeCounter

All Implemented Interfaces:

java.io.Serializable

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public class OperationPerTimeCounter

extends java.lang.Object

implements java.io.Serializable

Used to calculate number of operations occurred during a time interval. Was builded for working with cumulative values, so we only have to pass the current value to the hit method.

Basically we can use the two methods to get valuable results. the getCount for counting the number of times hit was called during the specified amount of time and getOperationsNumber to know how much the cumulative counter has been incremented during the same specified amount of time.

Version:

$Revision: 0.5.1.1 $ $Date: 2000/08/01 10:52:40 $

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Field Summary
private  java.util.Vector	_fifo
private  long	_timePeriod           The time (in ms) durring which a hit will be considered as active
private  java.util.Vector	_value

 

Constructor Summary

OperationPerTimeCounter()           Default constructor

OperationPerTimeCounter(long time_int)           Constructs an counter whitch will count operations number during the time interval specified

 

Method Summary
private  void	cleanFIFO(long curr_time)           That's the way we count hits, we put the time of the hit in a fifo then we only have to care to keep in the fifo only the values which are in our time interval.
long	getCount()           Returns the number of hits occured during the last x milliseconds specified with setTimeInterval
float	getOperationsNumber()           Returns the number of operations during the specified amount of time.
long	getTimeInterval()           With this method we can set the time interval used for counting hits
void	hit(float hits)           The main method, we will call this to pass in values related to the cumulative value we track.
void	setTimeInterval(long time_int)           With this method we can set the time interval used for counting hits

 

Methods inherited from class java.lang.Object

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

 

Field Detail

_timePeriod

private long _timePeriod

The time (in ms) durring which a hit will be considered as active

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_fifo

private java.util.Vector _fifo

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_value

private java.util.Vector _value

Constructor Detail

OperationPerTimeCounter

public OperationPerTimeCounter()

Default constructor

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OperationPerTimeCounter

public OperationPerTimeCounter(long time_int)

Constructs an counter whitch will count operations number during the time interval specified

Method Detail

setTimeInterval

public void setTimeInterval(long time_int)

With this method we can set the time interval used for counting hits

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cleanFIFO

private void cleanFIFO(long curr_time)

That's the way we count hits, we put the time of the hit in a fifo then we only have to care to keep in the fifo only the values which are in our time interval. We would only have to call this when a getCount is received, but in for not getting too big without reasons we will call it also in hit()

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getTimeInterval

public long getTimeInterval()

With this method we can set the time interval used for counting hits

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hit

public void hit(float hits)

The main method, we will call this to pass in values related to the cumulative value we track.

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getCount

public long getCount()

Returns the number of hits occured during the last x milliseconds specified with setTimeInterval

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getOperationsNumber

public float getOperationsNumber()

Returns the number of operations during the specified amount of time.

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