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EclipseLinkJpaDialect uses JPA 2.0's EntityManager unwrap method now for retrieving the underlying UnitOfWork/Connection

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Juergen Hoeller
2013-03-30 01:36:29 +01:00
parent 184455d630
commit 6e6446cc7c
1 changed files with 4 additions and 21 deletions
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25
spring-orm/src/main/java/org/springframework/orm/jpa/vendor/EclipseLinkJpaDialect.java vendored
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@@ -21,9 +21,6 @@ import java.sql.SQLException;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceException;
import org.eclipse.persistence.internal.sessions.AbstractSession;
import org.eclipse.persistence.jpa.JpaEntityManager;
import org.eclipse.persistence.sessions.Session;
import org.eclipse.persistence.sessions.UnitOfWork;
import org.springframework.jdbc.datasource.ConnectionHandle;
@@ -79,33 +76,19 @@ public class EclipseLinkJpaDialect extends DefaultJpaDialect {
super.beginTransaction(entityManager, definition);
if (!definition.isReadOnly() && !this.lazyDatabaseTransaction) {
// This is the magic bit. As with the existing Spring TopLink integration,
// begin an early transaction to force EclipseLink to get a JDBC Connection
// Begin an early transaction to force EclipseLink to get a JDBC Connection
// so that Spring can manage transactions with JDBC as well as EclipseLink.
UnitOfWork uow = (UnitOfWork) getSession(entityManager);
uow.beginEarlyTransaction();
entityManager.unwrap(UnitOfWork.class).beginEarlyTransaction();
}
// Could return the UOW, if there were any advantage in having it later.
return null;
}
@Override
public ConnectionHandle getJdbcConnection(EntityManager em, boolean readOnly)
public ConnectionHandle getJdbcConnection(EntityManager entityManager, boolean readOnly)
throws PersistenceException, SQLException {
AbstractSession session = (AbstractSession) getSession(em);
// The connection was already acquired eagerly in beginTransaction,
// unless lazyDatabaseTransaction was set to true.
Connection con = session.getAccessor().getConnection();
Connection con = entityManager.unwrap(Connection.class);
return (con != null ? new SimpleConnectionHandle(con) : null);
}
/**
* Get a traditional EclipseLink Session from the given EntityManager.
*/
protected Session getSession(EntityManager em) {
JpaEntityManager emi = (JpaEntityManager) em;
return emi.getActiveSession();
}
}