| java.lang.Object
 com.Yasna.util.CacheObject
| CacheObject | | final public class CacheObject (Code) | | Wrapper for all objects put into cache. It's primary purpose is to maintain
references to the linked lists that maintain the creation time of the object
and the ordering of the most used objects.
This class is optimized for speed rather than strictly correct encapsulation.
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| Constructor Summary | |
| public | CacheObject(Cacheable object, int size)
Creates a new cache object wrapper. |
| ageListNode | | public LinkedListNode ageListNode(Code) | | A reference to the node in the age order list. We keep the reference
here to avoid linear scans of the list. The reference is used if the
object has to be deleted from the list.
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| lastAccessedListNode | | public LinkedListNode lastAccessedListNode(Code) | | A reference to the node in the cache order list. We keep the reference
here to avoid linear scans of the list. Every time the object is
accessed, the node is removed from its current spot in the list and
moved to the front.
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| object | | public Cacheable object(Code) | | Underlying object wrapped by the CacheObject.
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| size | | public int size(Code) | | The size of the Cacheable object. The size of the Cacheable
object is only computed once when it is added to the cache. This makes
the assumption that once objects are added to cache, they are mostly
read-only and that their size does not change significantly over time.
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| CacheObject | | public CacheObject(Cacheable object, int size)(Code) | | Creates a new cache object wrapper. The size of the Cacheable object
must be passed in in order to prevent another possibly expensive
lookup by querying the object itself for its size.
Parameters:
object - the underlying Cacheable object to wrap.
Parameters:
size - the size of the Cachable object in bytes. |
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