uk.ac.ic.doc.automed.util.cache
Class ObjectCache

java.lang.Object
  uk.ac.ic.doc.automed.util.cache.ObjectCache

public class ObjectCache
extends java.lang.Object

Author:

dmle

Field Summary

protected static java.util.Map	cacheMap
private static int	counter
private static boolean	debug
private static boolean	debugDetailed
protected static ObjectCache	instance
static java.lang.Integer	MODE_DATA
private static java.lang.Integer	MODE_DEFAULT
static java.lang.Integer	MODE_MAPPING
static java.lang.Integer	MODE_OBJECT
static java.lang.Integer	MODE_RANGE
static java.lang.Integer	STATE_CACHE
static java.lang.Integer	STATE_CACHENEW
private static java.lang.Integer	STATE_DEFAULT
static java.lang.Integer	STATE_NOCACHE
static java.lang.Integer	STATE_READ
static java.lang.Integer	STATE_WRITE
static java.lang.Integer	STATE_WRITENEW
private java.util.Map	stateM
private java.util.Map	storeM
private static long	TTL

Constructor Summary

private

ObjectCache()

Method Summary

void	clear()
boolean	containsKey(java.lang.Object key) Check for default mode
private StorageHandler	getDefaultHandler()
static ObjectCache	getInstance() Return the default cache instance
static ObjectCache	getInstance(java.lang.String name) Return a new cache instance identified by name
private StorageHandler	getModeHandler(java.lang.Integer mode)
static java.lang.Integer	getModeRandom()
boolean	isCacheMapping()
boolean	isCacheOn(java.lang.Integer mode) Returns true if some sort of caching is on, otherwise returns false
boolean	isReadOn(java.lang.Integer mode)
boolean	isWriteOn(java.lang.Integer mode)
java.lang.Object	read(java.lang.Integer mode, java.lang.Object key, java.lang.Object args)
java.lang.Object	read(java.lang.Object key, java.lang.Object args)
java.util.Collection	readKeys(java.lang.Integer mode) Retrieve all cache keys of a specific mode
java.lang.Object	remove(java.lang.Integer mode, java.lang.Object key)
java.lang.Object	remove(java.lang.Object key)
void	removeAll(java.lang.Integer mode, java.lang.Object key)
java.lang.Integer	setCache(java.lang.Integer state) Set cache for default mode
void	setMode(java.lang.Integer mode, java.lang.Integer state) Change the caching state of a mode
void	setMode(java.lang.Integer mode, java.lang.Integer state, java.lang.Object handler) Turn on caching of a mode
void	write(java.lang.Integer mode, java.lang.Object key, java.lang.Object value)
void	write(java.lang.Object key, java.lang.Object value) Cache object for the default mode

Methods inherited from class java.lang.Object

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

Field Detail

MODE_MAPPING

public static final java.lang.Integer MODE_MAPPING

MODE_RANGE

public static final java.lang.Integer MODE_RANGE

MODE_OBJECT

public static final java.lang.Integer MODE_OBJECT

MODE_DATA

public static final java.lang.Integer MODE_DATA

counter

private static int counter

MODE_DEFAULT

private static final java.lang.Integer MODE_DEFAULT

storeM

private java.util.Map storeM

stateM

private java.util.Map stateM

STATE_NOCACHE

public static final java.lang.Integer STATE_NOCACHE

STATE_WRITE

public static final java.lang.Integer STATE_WRITE

STATE_WRITENEW

public static final java.lang.Integer STATE_WRITENEW

STATE_READ

public static final java.lang.Integer STATE_READ

STATE_CACHE

public static final java.lang.Integer STATE_CACHE

STATE_CACHENEW

public static final java.lang.Integer STATE_CACHENEW

STATE_DEFAULT

private static final java.lang.Integer STATE_DEFAULT

TTL

private static final long TTL

See Also:

Constant Field Values

debug

private static final boolean debug

debugDetailed

private static final boolean debugDetailed

instance

protected static ObjectCache instance

cacheMap

protected static java.util.Map cacheMap

Constructor Detail

ObjectCache

private ObjectCache()

Method Detail

getModeRandom

public static java.lang.Integer getModeRandom()

getInstance

public static ObjectCache getInstance()

Return the default cache instance

Returns:

getInstance

public static ObjectCache getInstance(java.lang.String name)

Return a new cache instance identified by name

Parameters:

name -

Returns:

setMode

public void setMode(java.lang.Integer mode,
                    java.lang.Integer state,
                    java.lang.Object handler)

Turn on caching of a mode

setMode

public void setMode(java.lang.Integer mode,
                    java.lang.Integer state)

Change the caching state of a mode

Parameters:

mode -

state -

getModeHandler

private StorageHandler getModeHandler(java.lang.Integer mode)

containsKey

public boolean containsKey(java.lang.Object key)

Check for default mode

Parameters:

key -

Returns:

setCache

public java.lang.Integer setCache(java.lang.Integer state)

Set cache for default mode

Parameters:

cacheOn -

Returns:

write

public void write(java.lang.Object key,
                  java.lang.Object value)

Cache object for the default mode

Parameters:

key -

value -

write

public void write(java.lang.Integer mode,
                  java.lang.Object key,
                  java.lang.Object value)

read

public java.lang.Object read(java.lang.Object key,
                             java.lang.Object args)

read

public java.lang.Object read(java.lang.Integer mode,
                             java.lang.Object key,
                             java.lang.Object args)

readKeys

public java.util.Collection readKeys(java.lang.Integer mode)

Retrieve all cache keys of a specific mode

Returns:

removeAll

public void removeAll(java.lang.Integer mode,
                      java.lang.Object key)

remove

public java.lang.Object remove(java.lang.Integer mode,
                               java.lang.Object key)

remove

public java.lang.Object remove(java.lang.Object key)

isCacheOn

public boolean isCacheOn(java.lang.Integer mode)

Returns true if some sort of caching is on, otherwise returns false

Returns:

isCacheMapping

public boolean isCacheMapping()

isWriteOn

public boolean isWriteOn(java.lang.Integer mode)

isReadOn

public boolean isReadOn(java.lang.Integer mode)

clear

public void clear()

getDefaultHandler

private StorageHandler getDefaultHandler()