SolarMetric Kodo JDO 3.4.1: Class DataCacheImpl

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SolarMetric Kodo JDO 3.4.1 generated on May 30 2006

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kodo.datacache
Class DataCacheImpl

java.lang.Object
  |
  +--serp.util.AbstractEventManager
        |
        +--kodo.datacache.AbstractDataCache
              |
              +--kodo.datacache.DataCacheImpl

All Implemented Interfaces:: com.solarmetric.util.Closeable, Configurable, DataCache, RemoteCommitListener

public class DataCacheImpl
extends AbstractDataCache
implements RemoteCommitListener

A PersistenceManagerFactory cache implementation. Commits are performed atomically.

Fields inherited from class kodo.datacache.AbstractDataCache

conf, log

Fields inherited from interface kodo.datacache.DataCache

DEFAULT_NAME

Constructor Summary

DataCacheImpl()


Method Summary

protected void clearInternal()
          Clear the cache.

void endConfiguration()
          Invoked upon completion of bean property configuration for this object.

CacheMap getCacheMap()
          Returns the underlying CacheMap that this DataCacheImpl is using.

int getCacheSize()
          Returns the maximum number of unpinned objects to keep hard references to.

String getEvictionTimes()
          Return a comma separated list of scheduled eviction times.

protected DataCachePCData getInternal(Object key)
          Return the object for the given oid.

int getSoftReferenceSize()
          Returns the maximum number of unpinned objects to keep soft references to.

protected boolean pinInternal(Object key)
          Pin an object to the cache.

protected DataCachePCData putInternal(Object key, DataCachePCData pc)
          Add the given object to the cache, returning the old object under the given oid.

void removeAllInternal(Class cls, boolean subclasses)
          Evict objects in cache by class.

protected DataCachePCData removeInternal(Object key)
          Remove the object under the given oid from the cache.

void setCacheSize(int size)
          Sets the maximum number of unpinned objects to keep hard references to.

void setEvictionTimes(String times)
          Set a comma separated list of eviction times when all elements in the cache should be evicted.

void setSoftReferenceSize(int size)
          Sets the maximum number of unpinned objects to keep soft references to.

protected boolean unpinInternal(Object key)
          Unpin an object from the cache.

Methods inherited from class kodo.datacache.AbstractDataCache

addExpirationListener, afterCommit, clear, close, closeWithoutClear, commit, contains, containsAll, fireEvent, get, getEvictionSchedule, getHitRate, getHits, getMisses, getName, getStatistics, getStatisticsString, initialize, isClosed, keyRemoved, pin, pinAll, put, putAllInternal, recacheUpdates, remove, removeAll, removeAll, removeAllClassNamesInternal, removeAllInternal, removeExpirationListener, resetStatistics, setConfiguration, setEvictionSchedule, setName, startConfiguration, toString, unpin, unpinAll, update

Methods inherited from class serp.util.AbstractEventManager

fireEvent, getListeners, hasListener, hasListeners, newListenerCollection, registerListener, removeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface kodo.event.RemoteCommitListener

afterCommit, close

Constructor Detail

DataCacheImpl

public DataCacheImpl()

Method Detail

getCacheMap

public CacheMap getCacheMap()

Returns the underlying CacheMap that this DataCacheImpl is using. This is not an unmodifiable view on the map, so care should be taken with this reference. Implementations should probably not modify the contents of the cache, but should only use this reference to obtain cache metrics.

setCacheSize

public void setCacheSize(int size)

Sets the maximum number of unpinned objects to keep hard references to. If the map contains more unpinned objects than size, then this method will result in the cache flushing old values.

getCacheSize

public int getCacheSize()

Returns the maximum number of unpinned objects to keep hard references to.

setSoftReferenceSize

public void setSoftReferenceSize(int size)

Sets the maximum number of unpinned objects to keep soft references to. If the map contains more soft references than size, then this method will result in the cache flushing values.

getSoftReferenceSize

public int getSoftReferenceSize()

Returns the maximum number of unpinned objects to keep soft references to. Defaults to -1.

setEvictionTimes

public void setEvictionTimes(String times)

Set a comma separated list of eviction times when all elements in the cache should be evicted.

getEvictionTimes

public String getEvictionTimes()

Return a comma separated list of scheduled eviction times. Defaults to null