org.specrunner.util.cache.core
Class CacheLRU<K,T>

java.lang.Object
  org.specrunner.util.cache.core.CacheLRU<K,T>

Type Parameters:

K - Key type.

T - The cache object type.

All Implemented Interfaces:

ICache<K,T>

public class CacheLRU<K,T>
extends Object
implements ICache<K,T>

LRU implementation of a cache.

Author:

Thiago Santos

Field Summary

Fields inherited from interface org.specrunner.util.cache.ICache

DEFAULT_FEATURE_CLEAN, DEFAULT_FEATURE_SIZE, DEFAULT_FEATURE_TIMEOUT, FEATURE_CLEAN, FEATURE_SIZE, FEATURE_TIMEOUT

Constructor Summary

CacheLRU(String name, ICacheCleaner<T> cleaner)
Basic constructor.

Method Summary

boolean	contains(K key) Says if a key is mapped.
T	get(K key) Get a cache object.
ICacheCleaner<T>	getCleaner() Get the cache cleaner.
String	getName() Get the cache name.
ICache<K,T>	put(K key, T value) Put an element to the cache.
void	release() Release cache.
void	remove(K key) Remove an object from cache.
ICache<K,T>	setClean(long clean) Set cache number of removed elements on cache overload.
ICache<K,T>	setCleaner(ICacheCleaner<T> cleaner) Set the cleaner.
ICache<K,T>	setName(String name) Set a cache name.
ICache<K,T>	setSize(long size) Set cache max size.
ICache<K,T>	setTimeout(long timeout) Set cache elements timeout.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheLRU

public CacheLRU(String name,
                ICacheCleaner<T> cleaner)

Basic constructor.

Parameters:

name - The cache name.

cleaner - A cleaner.

Method Detail

getName

public String getName()

Description copied from interface: ICache

Get the cache name.

Specified by:

getName in interface ICache<K,T>

Returns:

The name.

setName

public ICache<K,T> setName(String name)

Description copied from interface: ICache

Set a cache name.

Specified by:

setName in interface ICache<K,T>

Parameters:

name - A cache.

Returns:

The cache itself.

getCleaner

public ICacheCleaner<T> getCleaner()

Description copied from interface: ICache

Get the cache cleaner.

Specified by:

getCleaner in interface ICache<K,T>

Returns:

The cleaner.

setCleaner

public ICache<K,T> setCleaner(ICacheCleaner<T> cleaner)

Description copied from interface: ICache

Set the cleaner.

Specified by:

setCleaner in interface ICache<K,T>

Parameters:

cleaner - A cleaner.

Returns:

The cache itself.

setTimeout

public ICache<K,T> setTimeout(long timeout)

Description copied from interface: ICache

Set cache elements timeout.

Specified by:

setTimeout in interface ICache<K,T>

Parameters:

timeout - The timeout.

Returns:

The cache itself.

setSize

public ICache<K,T> setSize(long size)

Description copied from interface: ICache

Set cache max size.

Specified by:

setSize in interface ICache<K,T>

Parameters:

size - The size.

Returns:

The cache itself.

setClean

public ICache<K,T> setClean(long clean)

Description copied from interface: ICache

Set cache number of removed elements on cache overload.

Specified by:

setClean in interface ICache<K,T>

Parameters:

clean - The number of items to be removed.

Returns:

The cache itself.

contains

public boolean contains(K key)

Description copied from interface: ICache

Says if a key is mapped.

Specified by:

contains in interface ICache<K,T>

Parameters:

key - The key.

Returns:

true, if mapped, false, otherwise.

get

public T get(K key)

Description copied from interface: ICache

Get a cache object.

Specified by:

get in interface ICache<K,T>

Parameters:

key - The object key.

Returns:

A object, if an entry exists and is not out of date, null, otherwise.

put

public ICache<K,T> put(K key,
                       T value)

Description copied from interface: ICache

Put an element to the cache.

Specified by:

put in interface ICache<K,T>

Parameters:

key - The key.

value - The object value.

Returns:

The cache itself.

remove

public void remove(K key)

Description copied from interface: ICache

Remove an object from cache.

Specified by:

remove in interface ICache<K,T>

Parameters:

key - The key.

release

public void release()

Description copied from interface: ICache

Release cache.

Specified by:

release in interface ICache<K,T>