wt.wait
Class WaitService.Cache

java.lang.Object
  java.rmi.server.RemoteObject
      java.rmi.server.RemoteServer
          wt.util.RMIServer
              wt.cache.CacheManager
                  wt.wait.WaitService.Cache

All Implemented Interfaces:

CacheServer, Remote, Runnable, Serializable, Unreferenced

Enclosing class:

WaitService

public static class WaitService.Cache

extends CacheManager

implements Runnable

See Also:

Serialized Form

Field Summary

private static Hashtable	books
private Vector	notifications
private Thread	notifier

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

WaitService.Cache()

Method Summary

private void	doNotification(String key)
int	getDefaultSize() Get desired size of this cache.
String	getLockObj(String lock)
private static void	localNotify(String key)
void	notifyOn(String key)
protected void	removeEntry(Object key) Protected method which allows subclasses of CacheManager to take some action when a entry is being removed from the local cache.
void	reset() Reset local cache after master reconnect.
void	run()
void	waitOn(String key)
void	waitOn(String key, long timeout)

Methods inherited from class wt.cache.CacheManager

checkAccess, get, getDefaultName, getEntry, isCacheHost, overflow, ping, put, putEntry, putEntry, reference, registerSlave, remove, 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

books

private static Hashtable books

notifications

private Vector notifications

notifier

private Thread notifier

Constructor Detail

WaitService.Cache

public WaitService.Cache()
                  throws RemoteException

Method Detail

getDefaultSize

public int getDefaultSize()

Description copied from class: CacheManager

Get desired size of this cache. This method attemps to find a size property called wt.cache.size.CacheName where cacheName is the name of this cache. Subclasses can override this method to control cache size in some other way. If no property is found, the default size is 100.

Supported API: true

Overrides:

getDefaultSize in class CacheManager

localNotify

private static void localNotify(String key)

getLockObj

public String getLockObj(String lock)

removeEntry

protected void removeEntry(Object key)

Description copied from class: CacheManager

Protected method which allows subclasses of CacheManager to take some action when a entry is being removed from the local cache. This method is invoked to remove the entry in the local cache as a result of a local remove call or a call forwarded from a master cache. If this cache has a master cache, the remove call will already be forwarded to the master before this method is invoked. Slave caches will be notified to remove their entries after this method returns. This method must not cause a recursive remove call.

This method is not called when entries are being removed by the overflow or reset methods.

Supported API: true

Overrides:

removeEntry in class CacheManager

Parameters:

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

waitOn

public void waitOn(String key)
            throws InterruptedException

Throws:

InterruptedException

waitOn

public void waitOn(String key,
                   long timeout)
            throws InterruptedException

Throws:

InterruptedException

doNotification

private void doNotification(String key)

run

public void run()

Specified by:

run in interface Runnable

notifyOn

public void notifyOn(String key)

reset

public void reset()
           throws RemoteException

Description copied from class: CacheManager

Reset local cache after master reconnect. Called after recovery from communication failure when a connection to a new master has been established. The current cache contents are cleared and the local cache is registered as a slave of the new master.

NOTE: This may be called as a result of calling other cache updating operations since that is when the disconnect and reconnect may take place. When this happens, this method is called before the other methods return.

Supported API: true

Overrides:

reset in class CacheManager

Throws:

RemoteException