com.eibus.util.cache

Class CacheValue

java.lang.Object

com.eibus.util.cache.CacheValue

public abstract class CacheValue
extends java.lang.Object

This class should be overridden to implement a Cache. The subclass should contain all data that needs to be cached. When the cache invalidates some keys, then the Cache.cleanCacheValueInternal method is called for this object to reclaim the resources.

Since:

Jan 22, 2004

Author:

Willem Jan Gerritsen

See Also:

com.eibus.cache.Cache, com.eibus.cache.CacheKey

Constructor Summary

Constructors

Constructor and Description
CacheValue()
CacheValue(long expiryDate)

Method Summary

Modifier and Type	Method and Description
protected long	getSizeInternal() Calculates the size of this object in the cache.
void	touch() Sets the last used date with current time for this value.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheValue

public CacheValue()

CacheValue

public CacheValue(long expiryDate)

Method Detail

getSizeInternal

protected long getSizeInternal()

Calculates the size of this object in the cache. This method is called only once from the cache.

Returns:

a value greater or equal to 0.

touch

public void touch()

Sets the last used date with current time for this value.