org.broadleafcommerce.common.util

Class HibernateUtils

java.lang.Object

org.broadleafcommerce.common.util.HibernateUtils

public class HibernateUtils
extends Object

Hibernate convenience methods

Author:

Philip Baggett (pbaggett)

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_ENTITY_MANAGER_NAME

Constructor Summary

Constructors

Constructor and Description
HibernateUtils()

Method Summary

Modifier and Type	Method and Description
static <T> T	deproxy(T t) Ensure a domain object is an actual persisted object and not a Hibernate proxy object by getting its real implementation.
static <T> T	executeWithoutCache(GenericOperation<T> operation) Attempts to execute the operation without L2 or query cache engaged.
static <T> T	executeWithoutCache(GenericOperation<T> operation, javax.persistence.EntityManager em) During bulk operations such as reindexing we don't always want things to be cached.
static <T> T	executeWithoutCache(GenericOperation<T> operation, String persistenceUnitName) Attempts to execute the operation without L2 or query cache engaged.
static javax.persistence.EntityManager	getCurrentDefaultEntityManager() Retrieves the current, default EntityManager, with the PersistenceUnit name "blPU", or null if it has not been initialized and bound to the Thread.
static javax.persistence.EntityManager	getCurrentEntityManager(String persistenceUnitName) Retrieves the current, default EntityManager, with the PersistenceUnit name provided, or null if it has not been initialized and bound to the Thread.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_ENTITY_MANAGER_NAME

public static final String DEFAULT_ENTITY_MANAGER_NAME

See Also:

Constant Field Values

Constructor Detail

HibernateUtils

public HibernateUtils()

Method Detail

deproxy

public static <T> T deproxy(T t)

Ensure a domain object is an actual persisted object and not a Hibernate proxy object by getting its real implementation.

This is primarily useful when retrieving a lazy loaded object that has been subclassed and you have the intention of casting it.

Parameters:

t - the domain object to deproxy

Returns:

the actual persisted object or the passed in object if it is not a Hibernate proxy

executeWithoutCache

public static <T> T executeWithoutCache(GenericOperation<T> operation,
                                        javax.persistence.EntityManager em)
                                 throws Exception

During bulk operations such as reindexing we don't always want things to be cached. This allows us to surgically turn off caching where appropriate. If the EntityManager is null, the operation is executed without affecting the cache settings.

Parameters:

operation -

em -

Returns:

Throws:

G

Exception

executeWithoutCache

public static <T> T executeWithoutCache(GenericOperation<T> operation,
                                        String persistenceUnitName)
                                 throws Exception

Attempts to execute the operation without L2 or query cache engaged. This affects the PersistenceUnit with the provided name. If no EntityManager is bound to the thread for the provided PersistenceUnit, then the operation is performed without modifying the cache mode. Note that this does not create an EntityManager if one is not already initialized.

Parameters:

operation -

persistenceUnitName -

Returns:

Throws:

Exception

executeWithoutCache

public static <T> T executeWithoutCache(GenericOperation<T> operation)
                                 throws Exception

Attempts to execute the operation without L2 or query cache engaged. This method uses the PersistenceUnit name "blPU". If no EntityManager is bound to the thread, then the operation is performed without modifying the cache mode. Note that this does not create an EntityManager if one is not already initialized.

Parameters:

operation -

Returns:

Throws:

Exception

getCurrentEntityManager

public static javax.persistence.EntityManager getCurrentEntityManager(String persistenceUnitName)

Retrieves the current, default EntityManager, with the PersistenceUnit name provided, or null if it has not been initialized and bound to the Thread.

Parameters:

persistenceUnitName -

Returns:

getCurrentDefaultEntityManager

public static javax.persistence.EntityManager getCurrentDefaultEntityManager()

Retrieves the current, default EntityManager, with the PersistenceUnit name "blPU", or null if it has not been initialized and bound to the Thread.

Returns: