org.guvnor.common.services.backend.cache

Class LRUCache<Path,V>

java.lang.Object

org.guvnor.common.services.backend.cache.LRUCache<Path,V>

All Implemented Interfaces:

Cache<Path,V>

public abstract class LRUCache<Path,V>
extends Object
implements Cache<Path,V>

A simple LRU cache keyed on Paths

Constructor Summary

Constructors

Constructor and Description
LRUCache()
LRUCache(int maxEntries)

Method Summary

Modifier and Type	Method and Description
V	getEntry(Path path) Retrieve the cache entry for the specified key.
Set<Path>	getKeys()
void	invalidateCache() Invalidate the entire cache
void	invalidateCache(Path path) Invalidate the cache for a specific key.
void	setEntry(Path path, V value) Set the cache entry for the specified path.

Methods inherited from class java.lang.Object

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

Constructor Detail

LRUCache

public LRUCache()

LRUCache

public LRUCache(int maxEntries)

Method Detail

getEntry

public V getEntry(Path path)

Description copied from interface: Cache

Retrieve the cache entry for the specified key.

Specified by:

getEntry in interface Cache<Path,V>

Parameters:

path - The cache entry key

Returns:

V The cache entry

setEntry

public void setEntry(Path path,
                     V value)

Description copied from interface: Cache

Set the cache entry for the specified path.

Specified by:

setEntry in interface Cache<Path,V>

Parameters:

path - The cache entry key

value - The cache entry

invalidateCache

public void invalidateCache()

Description copied from interface: Cache

Invalidate the entire cache

Specified by:

invalidateCache in interface Cache<Path,V>

invalidateCache

public void invalidateCache(Path path)

Description copied from interface: Cache

Invalidate the cache for a specific key.

Specified by:

invalidateCache in interface Cache<Path,V>

Parameters:

path - The cache entry key

getKeys

public Set<Path> getKeys()