sfi.director.util.Cache Class Reference

List of all members.

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Detailed Description

implements a cache for arbitrary objects.

Each object is associated with a maximum time to live (TTL) after which it is removed from the cache and a time "extension" (each time the object is accessed the minimal time it stays in the cache is extended by the extension period). So the minimum time an object stays in the cache is the "extension" period, the maximum time is the TTL. Every now and then a "garbage collector" wipes "dead" objects out of the cache - independently of if they are still stored or not "dead" objects will never be accessible and be treated like being already wiped out.

Public Member Functions
	Cache ()
	Cache (long ttl)
	Cache (long ttl, long extension)
	Cache (long ttl, long extension, long gcInterval)
void	add (Object key, Object contents)
void	add (Object key, Object contents, long ttl)
void	add (Object key, Object contents, long ttl, long extension)
void	gc ()
Object	get (Object key)
void	remove (Object key)
int	size ()
Enumeration	elements ()
Package Attributes
Hashtable	cache = new Hashtable()
long	ttl
long	extension
long	gcInterval
long	nextGc = 0
Thread	gcRunning = null
Classes
class	CacheObject

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Constructor & Destructor Documentation

sfi.director.util.Cache.Cache (   )

sfi.director.util.Cache.Cache (  long  ttl  )

sfi.director.util.Cache.Cache (  long  ttl, long  extension )

sfi.director.util.Cache.Cache (  long  ttl, long  extension, long  gcInterval )

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Member Function Documentation

void sfi.director.util.Cache.add (  Object  key, Object  contents, long  ttl, long  extension )

void sfi.director.util.Cache.add (  Object  key, Object  contents, long  ttl )

void sfi.director.util.Cache.add (  Object  key, Object  contents )

Enumeration sfi.director.util.Cache.elements (   )

void sfi.director.util.Cache.gc (   )

Object sfi.director.util.Cache.get (  Object  key  )

void sfi.director.util.Cache.remove (  Object  key  )

int sfi.director.util.Cache.size (   )

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Member Data Documentation

Hashtable sfi.director.util.Cache.cache = new Hashtable() [package]

long sfi.director.util.Cache.extension [package]

long sfi.director.util.Cache.gcInterval [package]

Thread sfi.director.util.Cache.gcRunning = null [package]

long sfi.director.util.Cache.nextGc = 0 [package]

long sfi.director.util.Cache.ttl [package]

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The documentation for this class was generated from the following file:

• director/util/Cache.java

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