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Java Source Code / Java Documentation » Database ORM » JPOX » org.jpox.cache

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Class Diagram

Java Document (Java Doc)

org.jpox.cache .Level2Cache

All known Subclasses:   org.jpox.cache .NullLevel2Cache,  org.jpox.cache .DefaultLevel2Cache,
Level2Cache
public interface Level2Cache (Code)
Interface for any Level 2 Cache used by JPOX. Provides the typical controls required by JPOX itself and including the JDO2 DataStoreCache methods.
version:
   $Revision: 1.7 $

Inner Class :class PinnedClass

Method Summary
void clear()
     Method to clear the cache.
boolean containsOid(Object oid)

void evict(Object oid)
     Evict the parameter instance from the second-level cache.
void evictAll()
     Evict the parameter instances from the second-level cache.
void evictAll(Object[] oids)
     Evict the parameter instances from the second-level cache.
void evictAll(Collection oids)
     Evict the parameter instances from the second-level cache.
void evictAll(Class pcClass, boolean subclasses)
     Evict the parameter instances from the second-level cache.
CachedPC get(Object oid)
     Accessor for an object from the cache.
int getNumberOfPinnedObjects()
     Accessor for the number of pinned objects in the cache.
int getNumberOfUnpinnedObjects()
     Accessor for the number of unpinned objects in the cache.
int getSize()
     Accessor for the total number of objects in the L2 cache.
boolean isEmpty()
     Accessor for whether the cache is empty.
void pin(Object oid)
     Pin the parameter instance in the second-level cache.
void pinAll(Collection oids)
     Pin the parameter instances in the second-level cache.
void pinAll(Object[] oids)
     Pin the parameter instances in the second-level cache.
void pinAll(Class pcClass, boolean subclasses)
     Pin instances in the second-level cache.
CachedPC put(Object oid, CachedPC pc)
     Method to put an object in the cache.
void unpin(Object oid)
     Unpin the parameter instance from the second-level cache.
void unpinAll(Collection oids)
     Unpin the parameter instances from the second-level cache.
void unpinAll(Object[] oids)
     Unpin the parameter instance from the second-level cache.
void unpinAll(Class pcClass, boolean subclasses)
     Unpin instances from the second-level cache.

Method Detail
clear
void clear()(Code)
Method to clear the cache.

containsOid
boolean containsOid(Object oid)(Code)
Accessor for whether an object with the specified id is in the cache
Parameters:
  oid - The object id Whether it is in the cache

evict
void evict(Object oid)(Code)
Evict the parameter instance from the second-level cache.
Parameters:
  oid - the object id of the instance to evict.

evictAll
void evictAll()(Code)
Evict the parameter instances from the second-level cache. All instances in the PersistenceManager's cache are evicted from the second-level cache.

evictAll
void evictAll(Object[] oids)(Code)
Evict the parameter instances from the second-level cache.
Parameters:
  oids - the object ids of the instance to evict.

evictAll
void evictAll(Collection oids)(Code)
Evict the parameter instances from the second-level cache.
Parameters:
  oids - the object ids of the instance to evict.

evictAll
void evictAll(Class pcClass, boolean subclasses)(Code)
Evict the parameter instances from the second-level cache.
Parameters:
  pcClass - the class of instances to evict
Parameters:
  subclasses - if true, evict instances of subclasses also

get
CachedPC get(Object oid)(Code)
Accessor for an object from the cache.
Parameters:
  oid - The Object ID The L2 cacheable object

getNumberOfPinnedObjects
int getNumberOfPinnedObjects()(Code)
Accessor for the number of pinned objects in the cache. Number of pinned objects

getNumberOfUnpinnedObjects
int getNumberOfUnpinnedObjects()(Code)
Accessor for the number of unpinned objects in the cache. Number of unpinned objects

getSize
int getSize()(Code)
Accessor for the total number of objects in the L2 cache. Number of objects

isEmpty
boolean isEmpty()(Code)
Accessor for whether the cache is empty. Whether it is empty.

pin
void pin(Object oid)(Code)
Pin the parameter instance in the second-level cache.
Parameters:
  oid - the object id of the instance to pin.

pinAll
void pinAll(Collection oids)(Code)
Pin the parameter instances in the second-level cache.
Parameters:
  oids - the object ids of the instances to pin.

pinAll
void pinAll(Object[] oids)(Code)
Pin the parameter instances in the second-level cache.
Parameters:
  oids - the object ids of the instances to pin.

pinAll
void pinAll(Class pcClass, boolean subclasses)(Code)
Pin instances in the second-level cache.
Parameters:
  pcClass - the class of instances to pin
Parameters:
  subclasses - if true, pin instances of subclasses also

put
CachedPC put(Object oid, CachedPC pc)(Code)
Method to put an object in the cache.
Parameters:
  oid - The Object id for this object
Parameters:
  pc - The L2 cacheable PersistenceCapable object The value previously associated with this oid

unpin
void unpin(Object oid)(Code)
Unpin the parameter instance from the second-level cache.
Parameters:
  oid - the object id of the instance to unpin.

unpinAll
void unpinAll(Collection oids)(Code)
Unpin the parameter instances from the second-level cache.
Parameters:
  oids - the object ids of the instance to evict.

unpinAll
void unpinAll(Object[] oids)(Code)
Unpin the parameter instance from the second-level cache.
Parameters:
  oids - the object id of the instance to evict.

unpinAll
void unpinAll(Class pcClass, boolean subclasses)(Code)
Unpin instances from the second-level cache.
Parameters:
  pcClass - the class of instances to unpin
Parameters:
  subclasses - if true, unpin instances of subclasses also

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