org.riotfamily.cachius
Class CacheEntry

java.lang.Object
  org.riotfamily.cachius.CacheEntry

public class CacheEntry
extends Object

Class that holds a reference to the actual cached data and a lock that can be used to synchronize the access. It also keeps track of the last access time so that least recently used items can be evicted if the cache capacity is exceeded.

Author:

Felix Gnass [fgnass at neteye dot de]

Constructor Summary

CacheEntry(String key, File cacheDir)

Method Summary

protected void	delete()
boolean	equals(Object obj)
CacheItem	getItem()
String	getKey() Returns the key.
long	getLastAccess() Returns the last access time.
protected java.util.concurrent.locks.ReentrantReadWriteLock	getLock() Returns the lock.
int	hashCode()
CacheItem	newItem()
void	replaceItem(CacheItem newItem)
String	toString()
protected void	touch() Sets the lastUsed timestamp to the current time.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CacheEntry

public CacheEntry(String key,
                  File cacheDir)
           throws IOException

Throws:

IOException

Method Detail

getKey

public String getKey()

Returns the key.

getItem

public CacheItem getItem()

replaceItem

public void replaceItem(CacheItem newItem)

newItem

public CacheItem newItem()
                  throws IOException

Throws:

IOException

getLock

protected java.util.concurrent.locks.ReentrantReadWriteLock getLock()

Returns the lock.

touch

protected void touch()

Sets the lastUsed timestamp to the current time.

getLastAccess

public long getLastAccess()

Returns the last access time.

delete

protected void delete()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object