ostore.cache
Class CacheLine

java.lang.Object
  |
  +--ostore.cache.CacheLine

public abstract class CacheLine

extends Object

(toplevel) Line stored in the cache. Contains the Cacheable object, CacheableIdentity id, CacheableHandle handle, number times pinned, and if it has been written to a backing store.

Version:

$ID: CacheLine.java, v 1.0

Author:

Larry H. Tung

Field Summary

protected CacheableHandle	handle way in which to access this CacheLine
protected CacheableIdentity	id id which indicates how to store the object in the cache
protected ostore.cache.c_int	numPinned number of times this CacheLine is currently pinned
protected Cacheable	object object cached in the CacheLine
protected int	saved saved indicates whether this cacheline has (0) notBackedUp (not yet written to disk) (1) writingToDisk (currently writing to disk) (2) backedUp (finished writing to disk)

Method Summary

String

toString()

Methods inherited from class java.lang.Object

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

Field Detail

object

protected Cacheable object

object cached in the CacheLine

id

protected CacheableIdentity id

id which indicates how to store the object in the cache

handle

protected CacheableHandle handle

way in which to access this CacheLine

numPinned

protected ostore.cache.c_int numPinned

number of times this CacheLine is currently pinned

saved

protected int saved

saved indicates whether this cacheline has (0) notBackedUp (not yet written to disk) (1) writingToDisk (currently writing to disk) (2) backedUp (finished writing to disk)

Method Detail

toString

public String toString()

Overrides:

toString in class Object