org.jpox.cache
Class TangosolLevel2Cache

java.lang.Object
  org.jpox.cache.TangosolLevel2Cache

All Implemented Interfaces:

javax.jdo.datastore.DataStoreCache, org.jpox.cache.Level2Cache

public class TangosolLevel2Cache
extends java.lang.Object
implements org.jpox.cache.Level2Cache

Simple implementation of a plugin for use of Tangosols Coherence distributed caching product with JPOX. Please refer to www.tangosol.com for full details of their products. This plugin simply provides a wrapper to the Tangosol "NamedCache" to allow its use in JPOX.

Version:

$Revision: 1.9 $

Nested Class Summary

Nested classes/interfaces inherited from interface org.jpox.cache.Level2Cache

org.jpox.cache.Level2Cache.PinnedClass

Nested classes/interfaces inherited from interface javax.jdo.datastore.DataStoreCache

javax.jdo.datastore.DataStoreCache.EmptyDataStoreCache

Constructor Summary

TangosolLevel2Cache(java.util.Properties props)
Constructor.

Method Summary

void	clear() Method to clear the cache
boolean	containsOid(java.lang.Object oid) Accessor for whether the cache contains the specified id.
void	evict(java.lang.Object oid)
void	evictAll()
void	evictAll(java.lang.Class pcClass, boolean subclasses)
void	evictAll(java.util.Collection oids)
void	evictAll(java.lang.Object[] oids)
org.jpox.cache.CachedPC	get(java.lang.Object oid) Accessor for an object in the cache.
int	getNumberOfPinnedObjects() Accessor for the number of pinned objects - not supported by Tangosol.
int	getNumberOfUnpinnedObjects() Accessor for the number of unpinned objects - not supported by Tangosol.
int	getSize() Accessor for the size of the cache.
com.tangosol.net.NamedCache	getTangosolCache() Accessor for the backing Tangosol cache.
boolean	isEmpty() Accessor for whether the cache is empty
boolean	lock(java.lang.Object oid) Method to lock the underlying Tangosol cache.
boolean	lock(java.lang.Object oid, int wait) Method to lock the underlying Tangosol cache for a time period.
void	pin(java.lang.Object oid)
void	pinAll(java.lang.Class cls, boolean subs)
void	pinAll(java.util.Collection oids)
void	pinAll(java.lang.Object[] oids)
org.jpox.cache.CachedPC	put(java.lang.Object oid, org.jpox.cache.CachedPC pc) Method to add an object to the cache under its id
boolean	unlock(java.lang.Object oid) Method to unlock the underlying Tangosol cache.
void	unpin(java.lang.Object oid)
void	unpinAll(java.lang.Class cls, boolean subs)
void	unpinAll(java.util.Collection oids)
void	unpinAll(java.lang.Object[] oids)

Methods inherited from class java.lang.Object

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

Constructor Detail

TangosolLevel2Cache

public TangosolLevel2Cache(java.util.Properties props)

Constructor.

Parameters:

props - Any properties to control the cache

Method Detail

getTangosolCache

public com.tangosol.net.NamedCache getTangosolCache()

Accessor for the backing Tangosol cache. This is provided so that users can add much more elaborate control over their cache in line with what Tangosol provides.

Returns:

The Tangosol named cache.

clear

public void clear()

Method to clear the cache

Specified by:

clear in interface org.jpox.cache.Level2Cache

See Also:

Level2Cache.clear()

containsOid

public boolean containsOid(java.lang.Object oid)

Accessor for whether the cache contains the specified id.

Specified by:

containsOid in interface org.jpox.cache.Level2Cache

See Also:

Level2Cache.containsOid(java.lang.Object)

lock

public boolean lock(java.lang.Object oid)

Method to lock the underlying Tangosol cache.

Parameters:

oid - The key

Returns:

Success indicator

lock

public boolean lock(java.lang.Object oid,
                    int wait)

Method to lock the underlying Tangosol cache for a time period.

Parameters:

oid - The key

wait - the time period (ms)

Returns:

Success indicator

unlock

public boolean unlock(java.lang.Object oid)

Method to unlock the underlying Tangosol cache.

Parameters:

oid - The key

Returns:

Success indicator

get

public org.jpox.cache.CachedPC get(java.lang.Object oid)

Accessor for an object in the cache.

Specified by:

get in interface org.jpox.cache.Level2Cache

See Also:

Level2Cache.get(java.lang.Object)

getNumberOfPinnedObjects

public int getNumberOfPinnedObjects()

Accessor for the number of pinned objects - not supported by Tangosol.

Specified by:

getNumberOfPinnedObjects in interface org.jpox.cache.Level2Cache

See Also:

Level2Cache.getNumberOfPinnedObjects()

getNumberOfUnpinnedObjects

public int getNumberOfUnpinnedObjects()

Accessor for the number of unpinned objects - not supported by Tangosol.

Specified by:

getNumberOfUnpinnedObjects in interface org.jpox.cache.Level2Cache

See Also:

Level2Cache.getNumberOfUnpinnedObjects()

getSize

public int getSize()

Accessor for the size of the cache.

Specified by:

getSize in interface org.jpox.cache.Level2Cache

See Also:

Level2Cache.getSize()

isEmpty

public boolean isEmpty()

Accessor for whether the cache is empty

Specified by:

isEmpty in interface org.jpox.cache.Level2Cache

See Also:

Level2Cache.isEmpty()

put

public org.jpox.cache.CachedPC put(java.lang.Object oid,
                                   org.jpox.cache.CachedPC pc)

Method to add an object to the cache under its id

Specified by:

put in interface org.jpox.cache.Level2Cache

Parameters:

oid - The identity

pc - The cacheable object

Returns:

previous value for this identity (if any)

evict

public void evict(java.lang.Object oid)

Specified by:

evict in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.evict(java.lang.Object)

evictAll

public void evictAll()

Specified by:

evictAll in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.evictAll()

evictAll

public void evictAll(java.lang.Class pcClass,
                     boolean subclasses)

Specified by:

evictAll in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.evictAll(java.lang.Class, boolean)

evictAll

public void evictAll(java.util.Collection oids)

Specified by:

evictAll in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.evictAll(java.util.Collection)

evictAll

public void evictAll(java.lang.Object[] oids)

Specified by:

evictAll in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.evictAll(java.lang.Object[])

pin

public void pin(java.lang.Object oid)

Specified by:

pin in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.pin(java.lang.Object)

pinAll

public void pinAll(java.lang.Class cls,
                   boolean subs)

Specified by:

pinAll in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.pinAll(java.lang.Class, boolean)

pinAll

public void pinAll(java.util.Collection oids)

Specified by:

pinAll in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.pinAll(java.util.Collection)

pinAll

public void pinAll(java.lang.Object[] oids)

Specified by:

pinAll in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.pinAll(java.lang.Object[])

unpin

public void unpin(java.lang.Object oid)

Specified by:

unpin in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.unpin(java.lang.Object)

unpinAll

public void unpinAll(java.lang.Class cls,
                     boolean subs)

Specified by:

unpinAll in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.unpinAll(java.lang.Class, boolean)

unpinAll

public void unpinAll(java.util.Collection oids)

Specified by:

unpinAll in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.unpinAll(java.util.Collection)

unpinAll

public void unpinAll(java.lang.Object[] oids)

Specified by:

unpinAll in interface javax.jdo.datastore.DataStoreCache

See Also:

DataStoreCache.unpinAll(java.lang.Object[])