br.gov.frameworkdemoiselle.internal.producer
Class EntityManagerProducer

java.lang.Object
  br.gov.frameworkdemoiselle.internal.producer.EntityManagerProducer

All Implemented Interfaces:

Serializable

@ApplicationScoped
public class EntityManagerProducer
extends Object
implements Serializable

Factory class responsible to produces instances of EntityManager. Produces instances based on informations defined in persistence.xml, demoiselle.properties or @PersistenceUnit annotation.

See Also:

Serialized Form

Constructor Summary

EntityManagerProducer()

Method Summary

protected javax.persistence.EntityManager	createDefault(javax.enterprise.inject.spi.InjectionPoint ip, EntityManagerConfig config) Default EntityManager factory.
protected javax.persistence.EntityManager	createNamed(javax.enterprise.inject.spi.InjectionPoint ip, EntityManagerConfig config) Factory that reads the AmbiguousQualifier qualifier and creates an entity manager with a matching persistence unit name.
Map<String,javax.persistence.EntityManager>	getCache()
javax.persistence.EntityManager	getEntityManager(String persistenceUnit)

Methods inherited from class java.lang.Object

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

Constructor Detail

EntityManagerProducer

public EntityManagerProducer()

Method Detail

createDefault

@Default
@Produces
protected javax.persistence.EntityManager createDefault(javax.enterprise.inject.spi.InjectionPoint ip,
                                                                         EntityManagerConfig config)

Default EntityManager factory. Tries two strategies to produces EntityManager instances.

The first one is based on informations available on demoiselle properties file ("frameworkdemoiselle.persistence.unit.name" key).

The second one is based on persistence.xml file. If exists only one Persistence Unit defined, this one is used.

Parameters:

config - Suplies informations about EntityManager defined in properties file.

Returns:

Produced EntityManager.

createNamed

@Produces
protected javax.persistence.EntityManager createNamed(javax.enterprise.inject.spi.InjectionPoint ip,
                                                               EntityManagerConfig config)

Factory that reads the AmbiguousQualifier qualifier and creates an entity manager with a matching persistence unit name.

Parameters:

config - Suplies informations about EntityManager defined in properties file.

Returns:

Produced EntityManager.

getEntityManager

public javax.persistence.EntityManager getEntityManager(String persistenceUnit)

getCache

public Map<String,javax.persistence.EntityManager> getCache()