org.codejargon.fluentjdbc.api.integration.guicepersist.jpa

Interface JpaConnectionExtractor

public interface JpaConnectionExtractor

Extracts the underlying Connection from an EntityManager. There is no standard way defined in JPA to extract the underlying Connection in JPA, but it's possible with vendor-specific code. See examples below

EclipseLink and JPA 2.0

  entityManager.unwrap(java.sql.Connection.class);
  

Hibernate 4.x and JPA 2.0

  Session session = entityManager.unwrap(Session.class);
  SessionFactoryImplementor sfi = (SessionFactoryImplementor) session.getSessionFactory();
  return sfi.getConnectionProvider().getConnection();
  

Hibernate 3.x and JPA 2.0

  return entityManager.unwrap(Session.class).connection();
  

Hibernate 3.x and JPA 1.0

  Session session = (Session) entityManager.getDelegate();
  return session.connection();
  

Method Summary

Modifier and Type	Method and Description
Connection	extract(javax.persistence.EntityManager entityManager)

Method Detail

extract

Connection extract(javax.persistence.EntityManager entityManager)