org.rakeshv
Class Statistics

java.lang.Object
  org.rakeshv.Statistics

public class Statistics
extends java.lang.Object

A simple value object used to store statistics about usage of resources.

The following shows the easiest way to use this class.

   import org.rakeshv.Statistics;

   ...

     // Instance member
     private Statistics statistics = new Statistics();

     ...

       // Within method
       statistics.update();

     ...
 

Copyright 2005 Rakesh Vidyadharan

Version:

$Id: ConnectionFactory.java,v 1.2 2005/10/29 22:27:38 rakesh Exp $

Author:

Rakesh Vidyadharan 2005-11-20

Field Summary

private int	accessCount The total number of times the resource has been accessed.
private long	lastAccess The time in milliseconds that represents the last time at which the resource was accessed.

Constructor Summary

Statistics()
Default constructor.

Statistics(int accessCount, long lastAccess)
Designated constructor.

Statistics(long lastAccess)
Create a new instance of the class using the specified value for lastAccess.

Method Summary

int	getAccessCount() Returns accessCount.
java.util.Date	getLastAccess() Returns lastAccess as a Date object.
void	incrementAccessCount() Increment the value of accessCount
void	resetAccessCount() Reset the accessCount to 0.
protected void	setAccessCount(int accessCount) Set accessCount.
void	setLastAccess(java.util.Date date) Set the value of lastAccess using the specified date.
void	setLastAccess(long lastAccess) Set the value of lastAccess using the specified millisecond value.
void	update() Update the instance members to indicate that a resource has been accessed.
void	updateLastAccess() Update the lastAccess to the current time.

Methods inherited from class java.lang.Object

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

Field Detail

accessCount

private volatile int accessCount

The total number of times the resource has been accessed.

Note: No synchronisation is done while modifying the value of this field.

lastAccess

private volatile long lastAccess

The time in milliseconds that represents the last time at which the resource was accessed.

Note: No synchronisation is done while modifying the value of this field.

Constructor Detail

Statistics

public Statistics()

Default constructor. Initialises the instance members with default values.

Statistics

public Statistics(long lastAccess)

Create a new instance of the class using the specified value for lastAccess.

Parameters:

lastAccess - The millisecond value to use to initialise the lastAccess.

Statistics

public Statistics(int accessCount,
                  long lastAccess)

Designated constructor. Create a new instance of the class using the specified values.

Parameters:

accessCount - The number of times the resource has been accessed.

lastAccess - The millisecond value to use to initialise the lastAccess.

Method Detail

getLastAccess

public final java.util.Date getLastAccess()

Returns lastAccess as a Date object.

Returns:

Date A date value that represents the lastAccess time.

getAccessCount

public final int getAccessCount()

Returns accessCount.

Returns:

int The value/reference of/to accessCount.

incrementAccessCount

public final void incrementAccessCount()

Increment the value of accessCount

resetAccessCount

public final void resetAccessCount()

Reset the accessCount to 0.

setAccessCount

protected final void setAccessCount(int accessCount)

Set accessCount.

Parameters:

accessCount - The value to set.

setLastAccess

public final void setLastAccess(long lastAccess)

Set the value of lastAccess using the specified millisecond value.

Parameters:

lastAccess - The value in milliseconds to set.

setLastAccess

public final void setLastAccess(java.util.Date date)

Set the value of lastAccess using the specified date.

Parameters:

date - The date to use to set the value.

updateLastAccess

public final void updateLastAccess()

Update the lastAccess to the current time.

update

public final void update()

Update the instance members to indicate that a resource has been accessed.

See Also:

incrementAccessCount(), updateLastAccess()