Package org.hibernate.jpa.internal

Class PersistenceUnitUtilImpl

java.lang.Object

org.hibernate.jpa.internal.PersistenceUnitUtilImpl

All Implemented Interfaces:

PersistenceUnitUtil, PersistenceUtil, Serializable

public class PersistenceUnitUtilImpl
extends Object
implements PersistenceUnitUtil, Serializable

Author:

Steve Ebersole

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
PersistenceUnitUtilImpl(SessionFactoryImplementor sessionFactory)

Method Summary

Modifier and Type	Method	Description
Object	getIdentifier(Object entity)	Return the id of the entity.
boolean	isLoaded(Object entity)	Determine the load state of an entity belonging to the persistence unit.
boolean	isLoaded(Object entity, String attributeName)	Determine the load state of a given persistent attribute of an entity belonging to the persistence unit.

Methods inherited from class java.lang.Object

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

Constructor Details

PersistenceUnitUtilImpl

public PersistenceUnitUtilImpl(SessionFactoryImplementor sessionFactory)

Method Details

isLoaded

public boolean isLoaded(Object entity,
 String attributeName)

Description copied from interface: PersistenceUnitUtil

Determine the load state of a given persistent attribute of an entity belonging to the persistence unit.

Specified by:

isLoaded in interface PersistenceUnitUtil

Specified by:

isLoaded in interface PersistenceUtil

Parameters:

entity - entity instance containing the attribute

attributeName - name of attribute whose load state is to be determined

Returns:

false if entity's state has not been loaded or if the attribute state has not been loaded, else true

isLoaded

public boolean isLoaded(Object entity)

Description copied from interface: PersistenceUnitUtil

Determine the load state of an entity belonging to the persistence unit. This method can be used to determine the load state of an entity passed as a reference. An entity is considered loaded if all attributes for which FetchType.EAGER has been specified have been loaded.

The isLoaded(Object, String) method should be used to determine the load state of an attribute. Not doing so might lead to unintended loading of state.

Specified by:

isLoaded in interface PersistenceUnitUtil

Specified by:

isLoaded in interface PersistenceUtil

Parameters:

entity - entity instance whose load state is to be determined

Returns:

false if the entity has not been loaded, else true

getIdentifier

public Object getIdentifier(Object entity)

Description copied from interface: PersistenceUnitUtil

Return the id of the entity. A generated id is not guaranteed to be available until after the database insert has occurred. Returns null if the entity does not yet have an id.

Specified by:

getIdentifier in interface PersistenceUnitUtil

Parameters:

entity - entity instance

Returns:

id of the entity