org.ametys.core.util

Class CachingComponent<K,V>

java.lang.Object

org.ametys.runtime.plugin.component.AbstractLogEnabled

org.ametys.core.util.CachingComponent<K,V>

Type Parameters:

K - the type of keys for caching objects by this component.

V - the type of objects cached by this component.

All Implemented Interfaces:

LogEnabled, Disposable, Initializable

Direct Known Subclasses:

AbstractLDAPConnector, JdbcGroupDirectory, JdbcUserDirectory

public class CachingComponent<K,V>
extends AbstractLogEnabled
implements Initializable, Disposable

Simple memory cache with a thread clearing the cache every day.

Field Summary

Fields

Modifier and Type	Field and Description
private Map<K,V>	_objects
private Timer	_timer

Constructor Summary

Constructors

Constructor and Description
CachingComponent()

Method Summary

Modifier and Type	Method and Description
protected void	addObjectInCache(K key, V object) Adds a key/object pair in the cache.
protected void	clearCache() Removes all entries from the cache.
void	dispose()
protected V	getObjectFromCache(K key) Returns an object from the cache, correspondong to the specified key, or null if none.
void	initialize()
protected boolean	isCacheEnabled() Returns true if the cache is enabled.
protected void	removeObjectFromCache(K key) Removes a key/object pair in the cache.

Methods inherited from class org.ametys.runtime.plugin.component.AbstractLogEnabled

getLogger, setLogger

Methods inherited from class java.lang.Object

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

Field Detail

_objects

private Map<K,V> _objects

_timer

private Timer _timer

Constructor Detail

CachingComponent

public CachingComponent()

Method Detail

initialize

public void initialize()
                throws Exception

Specified by:

initialize in interface Initializable

Throws:

Exception

dispose

public void dispose()

Specified by:

dispose in interface Disposable

getObjectFromCache

protected V getObjectFromCache(K key)

Returns an object from the cache, correspondong to the specified key, or null if none.

Parameters:

key - the object's key.

Returns:

the object from cache.

addObjectInCache

protected void addObjectInCache(K key,
                                V object)

Adds a key/object pair in the cache.

Parameters:

key - the object's key.

object - the object to be cached.

removeObjectFromCache

protected void removeObjectFromCache(K key)

Removes a key/object pair in the cache.

Parameters:

key - the object's key.

clearCache

protected void clearCache()

Removes all entries from the cache.

isCacheEnabled

protected boolean isCacheEnabled()

Returns true if the cache is enabled.

Returns:

true if the cache is enabled.