org.hibernate.cache.spi.entry

Class StandardCacheEntryImpl

java.lang.Object

org.hibernate.cache.spi.entry.StandardCacheEntryImpl

All Implemented Interfaces:

Serializable, CacheEntry

public class StandardCacheEntryImpl
extends Object
implements CacheEntry

Standard representation of entity cached data using the "disassembled state".

Author:

Steve Ebersole

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
StandardCacheEntryImpl(Object[] state, EntityPersister persister, Object version, SessionImplementor session, Object owner) Constructs a StandardCacheEntryImpl

Method Summary

Modifier and Type	Method and Description
Object[]	assemble(Object instance, Serializable id, EntityPersister persister, Interceptor interceptor, EventSource session) Assemble the previously disassembled state represented by this entry into the given entity instance.
Serializable[]	getDisassembledState() Get the underlying disassembled state todo : this was added to support initializing an entity's EntityEntry snapshot during reattach; this should be refactored to instead expose a method to assemble a EntityEntry based on this state for return.
String	getSubclass() Hibernate stores all entries pertaining to a given entity hierarchy in a single region.
Object	getVersion() Retrieves the version (optimistic locking) associated with this cache entry.
boolean	isDeepCopyNeeded() After assembly, is a copy of the array needed?
boolean	isReferenceEntry() Does this entry represent a direct entity reference (rather than disassembled state)?
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

StandardCacheEntryImpl

public StandardCacheEntryImpl(Object[] state,
                              EntityPersister persister,
                              Object version,
                              SessionImplementor session,
                              Object owner)
                       throws HibernateException

Constructs a StandardCacheEntryImpl

Parameters:

state - The extracted state

persister - The entity persister

version - The current version (if versioned)

session - The originating session

owner - The owner

Throws:

HibernateException - Generally indicates a problem performing the dis-assembly.

Method Detail

isReferenceEntry

public boolean isReferenceEntry()

Description copied from interface: CacheEntry

Does this entry represent a direct entity reference (rather than disassembled state)?

Specified by:

isReferenceEntry in interface CacheEntry

Returns:

true/false

getDisassembledState

public Serializable[] getDisassembledState()

Description copied from interface: CacheEntry

Get the underlying disassembled state todo : this was added to support initializing an entity's EntityEntry snapshot during reattach; this should be refactored to instead expose a method to assemble a EntityEntry based on this state for return.

Specified by:

getDisassembledState in interface CacheEntry

Returns:

The disassembled state

getSubclass

public String getSubclass()

Description copied from interface: CacheEntry

Hibernate stores all entries pertaining to a given entity hierarchy in a single region. This attribute tells us the specific entity type represented by the cached data.

Specified by:

getSubclass in interface CacheEntry

Returns:

The entry's exact entity type.

getVersion

public Object getVersion()

Description copied from interface: CacheEntry

Retrieves the version (optimistic locking) associated with this cache entry.

Specified by:

getVersion in interface CacheEntry

Returns:

The version of the entity represented by this entry

isDeepCopyNeeded

public boolean isDeepCopyNeeded()

After assembly, is a copy of the array needed?

Returns:

true/false

assemble

public Object[] assemble(Object instance,
                         Serializable id,
                         EntityPersister persister,
                         Interceptor interceptor,
                         EventSource session)
                  throws HibernateException

Assemble the previously disassembled state represented by this entry into the given entity instance. Additionally manages the PreLoadEvent callbacks.

Parameters:

instance - The entity instance

id - The entity identifier

persister - The entity persister

interceptor - (currently unused)

session - The session

Returns:

The assembled state

Throws:

HibernateException - Indicates a problem performing assembly or calling the PreLoadEventListeners.

See Also:

Type.assemble(java.io.Serializable, org.hibernate.engine.spi.SessionImplementor, java.lang.Object), Type.disassemble(java.lang.Object, org.hibernate.engine.spi.SessionImplementor, java.lang.Object)

toString

public String toString()

Overrides:

toString in class Object