wt.recent
Class RecentUpdateCache

java.lang.Object
  java.rmi.server.RemoteObject
      java.rmi.server.RemoteServer
          wt.util.RMIServer
              wt.cache.CacheManager
                  wt.recent.RecentUpdateCache

All Implemented Interfaces:

CacheServer, Remote, Serializable, Unreferenced

public class RecentUpdateCache

extends CacheManager

See Also:

Serialized Form

Field Summary

private Cache	c
private static String	CLASSNAME
private static RecentlyVisitedServiceFwd	fwd
private static int	recentUpdateCacheSize
private static boolean	VERBOSE

Fields inherited from class wt.cache.CacheManager

MASTER

Fields inherited from class wt.util.RMIServer

csf, ssf

Fields inherited from class java.rmi.server.RemoteServer

Fields inherited from class java.rmi.server.RemoteObject

ref

Fields inherited from interface wt.cache.CacheServer

versionID

Constructor Summary

RecentUpdateCache()
Contruct a new cache.

Method Summary

Object	get(Object key) Get from Local cache else returns null forcing a DB Query
private Cache	getCache()
int	getDefaultSize() Overriden CacheManager method to set cache size
protected void	printCache()
void	put(Object key, Object value) Put in the local Cache and remove from all other caches
protected void	putLocalEntry(Object key, Object value) Put in the local Cache The params: key : String || value : RecentUpdate object
void	remove(Object key) Remove from all caches
protected void	removeEntry(Object key) overridden removeEntry method of CacheManager, remove element from local cache
void	reset() overridden reset method of CacheManager, clear local cache

Methods inherited from class wt.cache.CacheManager

checkAccess, getDefaultName, getEntry, isCacheHost, overflow, ping, putEntry, putEntry, reference, registerSlave, remove, removeEntry, unreferenced, update, updateEntry, updateEntry

Methods inherited from class wt.util.RMIServer

clone, exportObject, exportObject, exportObject, getClientSocketFactory, getPort, getServerSocketFactory, getStub, isHostInList, isLocalHost, setPort, writeReplace

Methods inherited from class java.rmi.server.RemoteServer

getClientHost, getLog, setLog

Methods inherited from class java.rmi.server.RemoteObject

equals, getRef, hashCode, toString, toStub

Methods inherited from class java.lang.Object

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

Field Detail

VERBOSE

private static final boolean VERBOSE

CLASSNAME

private static final String CLASSNAME

recentUpdateCacheSize

private static int recentUpdateCacheSize

fwd

private static RecentlyVisitedServiceFwd fwd

c

private Cache c

Constructor Detail

RecentUpdateCache

public RecentUpdateCache()
                  throws RemoteException

Contruct a new cache.

Method Detail

getCache

private Cache getCache()

getDefaultSize

public int getDefaultSize()

Overriden CacheManager method to set cache size

Overrides:

getDefaultSize in class CacheManager

Returns:

default cache size

removeEntry

protected void removeEntry(Object key)

overridden removeEntry method of CacheManager, remove element from local cache

Overrides:

removeEntry in class CacheManager

Parameters:

key - - hash key of element to be removed

putLocalEntry

protected void putLocalEntry(Object key,
                             Object value)

Put in the local Cache The params: key : String || value : RecentUpdate object

put

public void put(Object key,
                Object value)

Put in the local Cache and remove from all other caches

Overrides:

put in class CacheManager

Parameters:

key - the key object

value - the value object

reset

public void reset()
           throws RemoteException

overridden reset method of CacheManager, clear local cache

Overrides:

reset in class CacheManager

Throws:

RemoteException

remove

public void remove(Object key)

Remove from all caches

Overrides:

remove in class CacheManager

Parameters:

key - the key object (null = clear entire cache)

get

public Object get(Object key)

Get from Local cache else returns null forcing a DB Query

Overrides:

get in class CacheManager

Parameters:

key - the key object

Returns:

the corresponding cached object or null if not in cache

printCache

protected void printCache()