org.hibernate.loader.entity

Class CacheEntityLoaderHelper

java.lang.Object

org.hibernate.event.internal.AbstractReassociateEventListener

org.hibernate.event.internal.AbstractLockUpgradeEventListener

org.hibernate.loader.entity.CacheEntityLoaderHelper

All Implemented Interfaces:

Serializable

public class CacheEntityLoaderHelper
extends org.hibernate.event.internal.AbstractLockUpgradeEventListener

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CacheEntityLoaderHelper.EntityStatus
static class	CacheEntityLoaderHelper.PersistenceContextEntry

Field Summary

Fields

Modifier and Type	Field and Description
static CacheEntityLoaderHelper	INSTANCE

Method Summary

Modifier and Type	Method and Description
Object	loadFromSecondLevelCache(LoadEvent event, EntityPersister persister, EntityKey entityKey) Attempts to load the entity from the second-level cache.
CacheEntityLoaderHelper.PersistenceContextEntry	loadFromSessionCache(LoadEvent event, EntityKey keyToLoad, LoadEventListener.LoadType options) Attempts to locate the entity in the session-level cache.

Methods inherited from class org.hibernate.event.internal.AbstractLockUpgradeEventListener

upgradeLock

Methods inherited from class org.hibernate.event.internal.AbstractReassociateEventListener

reassociate

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final CacheEntityLoaderHelper INSTANCE

Method Detail

loadFromSessionCache

public CacheEntityLoaderHelper.PersistenceContextEntry loadFromSessionCache(LoadEvent event,
                                                                            EntityKey keyToLoad,
                                                                            LoadEventListener.LoadType options)
                                                                     throws HibernateException

Attempts to locate the entity in the session-level cache.

If allowed to return nulls, then if the entity happens to be found in the session cache, we check the entity type for proper handling of entity hierarchies.

If checkDeleted was set to true, then if the entity is found in the session-level cache, it's current status within the session cache is checked to see if it has previously been scheduled for deletion.

Parameters:

event - The load event

keyToLoad - The EntityKey representing the entity to be loaded.

options - The load options.

Returns:

The entity from the session-level cache, or null.

Throws:

HibernateException - Generally indicates problems applying a lock-mode.

loadFromSecondLevelCache

public Object loadFromSecondLevelCache(LoadEvent event,
                                       EntityPersister persister,
                                       EntityKey entityKey)

Attempts to load the entity from the second-level cache.

Parameters:

event - The load event

persister - The persister for the entity being requested for load

Returns:

The entity from the second-level cache, or null.