org.objectweb.cjdbc.controller.cache
Class CacheStatistics

java.lang.Object
  org.objectweb.cjdbc.controller.cache.CacheStatistics

public class CacheStatistics

extends java.lang.Object

This class handles the statistics for request caches.

Version:

1.0

Author:

Emmanuel Cecchet

Field Summary

private Stats	create
private Stats	delete
private Stats	drop
private Stats	hits
private Stats	insert
private Stats	remove
private Stats	select
private Stats	uncacheable
private Stats	unknown
private Stats	update

Constructor Summary

CacheStatistics()
Creates a new CacheStatistics object.

Method Summary

void	addCreate() Increments the create count.
void	addDelete() Increments the delete count.
void	addDrop() Increments the drop count.
void	addHits() Increments the hits count.
void	addInsert() Increments the insert count.
void	addRemove() Increments the remove count.
void	addSelect() Increments the select count.
void	addUncacheable() Increments the uncacheable count.
void	addUnknown() Increments the unkwnown count.
void	addUpdate() Increments the update count.
long	getCacheHitRatio() Get percentage of hits
java.lang.String[]	getCacheStatsData() Retrieve cache statistics as a table
int	getCreate() Returns the create.
int	getDelete() Returns the delete.
int	getDrop() Returns the drop.
int	getHits() Returns the hits.
int	getInsert() Returns the insert.
int	getRemove() Returns the remove.
int	getSelect() Returns the select.
int	getUncacheable() Returns the uncacheable.
int	getUnknown() Returns the unknown.
int	getUpdate() Returns the update.
void	reset() Resets all stats to zero.

Methods inherited from class java.lang.Object

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

Field Detail

select

private Stats select

hits

private Stats hits

insert

private Stats insert

update

private Stats update

uncacheable

private Stats uncacheable

delete

private Stats delete

unknown

private Stats unknown

remove

private Stats remove

create

private Stats create

drop

private Stats drop

Constructor Detail

CacheStatistics

public CacheStatistics()

Creates a new CacheStatistics object.

Method Detail

reset

public void reset()

Resets all stats to zero.

getCreate

public int getCreate()

Returns the create.

Returns:

an int value

getDelete

public int getDelete()

Returns the delete.

Returns:

an int value

getDrop

public int getDrop()

Returns the drop.

Returns:

an int value

getHits

public int getHits()

Returns the hits.

Returns:

an int value

getInsert

public int getInsert()

Returns the insert.

Returns:

an int value

getRemove

public int getRemove()

Returns the remove.

Returns:

an int value

getSelect

public int getSelect()

Returns the select.

Returns:

an int value

getUnknown

public int getUnknown()

Returns the unknown.

Returns:

an int value

getUpdate

public int getUpdate()

Returns the update.

Returns:

an int value

getUncacheable

public int getUncacheable()

Returns the uncacheable.

Returns:

an int value

addCreate

public void addCreate()

Increments the create count.

addDelete

public void addDelete()

Increments the delete count.

addDrop

public void addDrop()

Increments the drop count.

addHits

public void addHits()

Increments the hits count.

addInsert

public void addInsert()

Increments the insert count.

addRemove

public void addRemove()

Increments the remove count.

addSelect

public void addSelect()

Increments the select count.

addUnknown

public void addUnknown()

Increments the unkwnown count.

addUpdate

public void addUpdate()

Increments the update count.

addUncacheable

public void addUncacheable()

Increments the uncacheable count.

getCacheStatsData

public java.lang.String[] getCacheStatsData()

Retrieve cache statistics as a table

Returns:

an array of String containing the different cache values, like number of select, number of hits ...

getCacheHitRatio

public long getCacheHitRatio()

Get percentage of hits

Returns:

hits / select