org.hibernate.engine
Class TwoPhaseLoad
java.lang.Object
org.hibernate.engine.TwoPhaseLoad
public final class TwoPhaseLoad
extends java.lang.Object
Functionality relating to Hibernate's two-phase loading process,
that may be reused by persisters that do not use the Loader
framework
static void | addUninitializedCachedEntity(EntityKey key, Object object, EntityPersister persister, LockMode lockMode, boolean lazyPropertiesAreUnfetched, Object version, SessionImplementor session)
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static void | addUninitializedEntity(EntityKey key, Object object, EntityPersister persister, LockMode lockMode, boolean lazyPropertiesAreUnfetched, SessionImplementor session) - Add an uninitialized instance of an entity class, as a placeholder to ensure object
identity.
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static void | initializeEntity(Object entity, boolean readOnly, SessionImplementor session, PreLoadEvent preLoadEvent, PostLoadEvent postLoadEvent) - Perform the second step of 2-phase load.
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static void | postHydrate(EntityPersister persister, Serializable id, Object[] values, Object rowId, Object object, LockMode lockMode, boolean lazyPropertiesAreUnfetched, SessionImplementor session) - Register the "hydrated" state of an entity instance, after the first step of 2-phase loading.
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addUninitializedEntity
public static void addUninitializedEntity(EntityKey key,
Object object,
EntityPersister persister,
LockMode lockMode,
boolean lazyPropertiesAreUnfetched,
SessionImplementor session)
Add an uninitialized instance of an entity class, as a placeholder to ensure object
identity. Must be called before postHydrate().
Create a "temporary" entry for a newly instantiated entity. The entity is uninitialized,
but we need the mapping from id to instance in order to guarantee uniqueness.
initializeEntity
public static void initializeEntity(Object entity,
boolean readOnly,
SessionImplementor session,
PreLoadEvent preLoadEvent,
PostLoadEvent postLoadEvent)
throws HibernateException
Perform the second step of 2-phase load. Fully initialize the entity
instance.
After processing a JDBC result set, we "resolve" all the associations
between the entities which were instantiated and had their state
"hydrated" into an array
postHydrate
public static void postHydrate(EntityPersister persister,
Serializable id,
Object[] values,
Object rowId,
Object object,
LockMode lockMode,
boolean lazyPropertiesAreUnfetched,
SessionImplementor session)
throws HibernateException
Register the "hydrated" state of an entity instance, after the first step of 2-phase loading.
Add the "hydrated state" (an array) of an uninitialized entity to the session. We don't try
to resolve any associations yet, because there might be other entities waiting to be
read from the JDBC result set we are currently processing