ostore.cache
Class MemoryCache

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

All Implemented Interfaces:

EventHandlerIF, ProfilableIF, SingleThreadedEventHandlerIF

public class MemoryCache

extends Object

implements SingleThreadedEventHandlerIF, EventHandlerIF, ProfilableIF

Stage that sends and receives messages to the cache. One would send/receive messages through MemoryCache if one is willing to wait - Thread running this thread may block when going to disk.
Currently supports the following messages: CacheBlockRequestMessage, CacheBlockReplyMessage, CachePinnedRequest, CachePinnedReply, CacheInsertMessage, CacheInsertDone, CacheReserveSpaceMessage, CacheReserveSpaceDone.

Constructor Summary

MemoryCache()

Method Summary

void	destroy()
void	handleEvent(QueueElementIF element)
void	handleEvents(QueueElementIF[] element_array)
void	init(ConfigDataIF config)
int	profileSize()

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryCache

public MemoryCache()

Method Detail

handleEvent

public void handleEvent(QueueElementIF element)
                 throws EventHandlerException

Specified by:

handleEvent in interface EventHandlerIF

EventHandlerException

handleEvents

public void handleEvents(QueueElementIF[] element_array)
                  throws EventHandlerException

Specified by:

handleEvents in interface EventHandlerIF

EventHandlerException

init

public void init(ConfigDataIF config)
          throws Exception

Specified by:

init in interface EventHandlerIF

Exception

destroy

public void destroy()
             throws Exception

Specified by:

destroy in interface EventHandlerIF

Exception

profileSize

public int profileSize()

Specified by:

profileSize in interface ProfilableIF