org.datanucleus.cache

Class AbstractLevel2Cache

java.lang.Object

org.datanucleus.cache.AbstractLevel2Cache

All Implemented Interfaces:

Serializable, Level2Cache

Direct Known Subclasses:

JavaxCacheLevel2Cache, NullLevel2Cache

public abstract class AbstractLevel2Cache
extends Object
implements Level2Cache

Abstract starting point for a third-party L2 cache plugin. Override the pin/unpin methods if supportable by your plugin.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected String	cacheName Name of the cache to use.
protected boolean	clearAtClose Whether to clear out all objects at close().
protected long	expiryMillis Timeout for cache object expiration (milliseconds).
protected int	maxSize Maximum size of cache (if supported by the plugin).
protected NucleusContext	nucleusCtx

Constructor Summary

Constructors

Constructor and Description
AbstractLevel2Cache(NucleusContext nucleusCtx)

Method Summary

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.datanucleus.cache.Level2Cache

close, containsOid, evict, evictAll, evictAll, evictAll, evictAll, get, getAll, getNumberOfPinnedObjects, getNumberOfUnpinnedObjects, getSize, getUnique, isEmpty, pin, pinAll, pinAll, pinAll, put, putAll, putUnique, putUniqueAll, removeUnique, unpin, unpinAll, unpinAll, unpinAll

Field Detail

nucleusCtx

protected NucleusContext nucleusCtx

maxSize

protected int maxSize

Maximum size of cache (if supported by the plugin).

clearAtClose

protected boolean clearAtClose

Whether to clear out all objects at close().

expiryMillis

protected long expiryMillis

Timeout for cache object expiration (milliseconds).

cacheName

protected String cacheName

Name of the cache to use.

Constructor Detail

AbstractLevel2Cache

public AbstractLevel2Cache(NucleusContext nucleusCtx)