org.eclipse.core.internal.utils
Class Cache

java.lang.Object
  org.eclipse.core.internal.utils.Cache

public class Cache
extends java.lang.Object

A cache that keeps a collection of at most maximumCapacity+threshold entries. When the number of entries exceeds that limit, least recently used entries are removed so the current size is the same as the maximum capacity.

Nested Class Summary

class

Cache.Entry

Constructor Summary

Cache(int maximumCapacity)

Cache(int initialCapacity, int maximumCapacity, double threshold)

Method Summary

void	addEntry(java.lang.Object key, java.lang.Object toCache)
Cache.Entry	addEntry(java.lang.Object key, java.lang.Object toCache, long timestamp)
void	discardAll()
void	dispose()
Cache.Entry	getEntry(java.lang.Object key)
Cache.Entry	getEntry(java.lang.Object key, boolean update)
Cache.Entry	getHead()
Cache.Entry	getTail()
long	size()

Methods inherited from class java.lang.Object

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

Constructor Detail

Cache

public Cache(int maximumCapacity)

Cache

public Cache(int initialCapacity,
             int maximumCapacity,
             double threshold)

Method Detail

addEntry

public void addEntry(java.lang.Object key,
                     java.lang.Object toCache)

addEntry

public Cache.Entry addEntry(java.lang.Object key,
                            java.lang.Object toCache,
                            long timestamp)

getEntry

public Cache.Entry getEntry(java.lang.Object key)

getEntry

public Cache.Entry getEntry(java.lang.Object key,
                            boolean update)

getHead

public Cache.Entry getHead()

getTail

public Cache.Entry getTail()

size

public long size()

discardAll

public void discardAll()

dispose

public void dispose()