org.hibernate.persister.entity

Class NamedQueryLoader

java.lang.Object

org.hibernate.persister.entity.NamedQueryLoader

All Implemented Interfaces:

UniqueEntityLoader

public final class NamedQueryLoader
extends Object
implements UniqueEntityLoader

Not really a Loader, just a wrapper around a named query. Used when the metadata has named a query to use for loading an entity (using Loader or <loader/>).

Author:

Gavin King, Steve Ebersole

Constructor Summary

Constructors

Constructor and Description
NamedQueryLoader(String queryName, EntityPersister persister) Constructs the NamedQueryLoader

Method Summary

Modifier and Type	Method and Description
Object	load(Serializable id, Object optionalObject, SessionImplementor session) Load an entity instance.
Object	load(Serializable id, Object optionalObject, SessionImplementor session, LockOptions lockOptions) Load an entity instance by id.

Methods inherited from class java.lang.Object

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

Constructor Detail

NamedQueryLoader

public NamedQueryLoader(String queryName,
                        EntityPersister persister)

Constructs the NamedQueryLoader

Parameters:

queryName - The name of the named query to use

persister - The corresponding persister for the entity we are loading

Method Detail

load

public Object load(Serializable id,
                   Object optionalObject,
                   SessionImplementor session,
                   LockOptions lockOptions)

Description copied from interface: UniqueEntityLoader

Load an entity instance by id. If optionalObject is supplied (non-null, the entity state is loaded into that object instance instead of instantiating a new one.

Specified by:

load in interface UniqueEntityLoader

Parameters:

id - The id to be loaded

optionalObject - The (optional) entity instance in to which to load the state

session - The session from which the request originated

lockOptions - The lock options.

Returns:

The loaded entity

load

public Object load(Serializable id,
                   Object optionalObject,
                   SessionImplementor session)

Description copied from interface: UniqueEntityLoader

Load an entity instance. If optionalObject is supplied, load the entity state into the given (uninitialized) object.

Specified by:

load in interface UniqueEntityLoader