Hello,
I try to migrate from Hibernate 2 to Hibernate 3.2, and my code now generates an exception.
I code this way to avoid handling tx.rollback() in every catch:
Code:
Transaction tx = null;
Session session = null;
try{
session = new HibernateUtil().currentSession();
tx = session.beginTransaction();
... do something ...
logger.debug("about to commit");
tx.commit();
logger.info("commit ok");
} catch (NullPointerException npe){
logger.fatal("PartnerManager.createEntity nullPointer ",npe);
throw (npe);
} catch(Exception dimE){
logger.warn("PartnerManager.createEntity exception ",dimE);
throw dimE;
} finally {
try {
logger.debug("finally");
if(session!=null && session.isOpen()) logger.info("session is open");
if(tx.isActive()) logger.debug("tx is active");
else logger.debug("tx is not active");
if(tx!=null) tx.rollback();
logger.debug("1");
HibernateUtil.closeSession();
} catch (HibernateException e) {
logger.warn("error casted from Hibernate to CFECException ",e);
throw new CFECException("error casted from Hibernate to CFECException ",e);
}
I get this exception
2007-02-14 17:50:46,171 DEBUG (PartnerManager.java:2559) - about to commit
2007-02-14 17:50:46,171 INFO (PartnerManager.java:2561) - commit ok
2007-02-14 17:50:46,171 DEBUG (PartnerManager.java:2592) - finally
2007-02-14 17:50:46,171 INFO (PartnerManager.java:2594) - session is open
2007-02-14 17:57:22,015 DEBUG (PartnerManager.java:2597) - tx is not active
2007-02-14 17:50:46,171 WARN (PartnerManager.java:2609) - error casted from Hibernate to CFECException
org.hibernate.TransactionException: Transaction not successfully started
at org.hibernate.transaction.JDBCTransaction.rollback(JDBCTransaction.java:149)
at business.partner.PartnerManager.createEntity(PartnerManager.java:2596)
at action.partner.PartnerInfoAction.create(PartnerInfoAction.java:549)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:276)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:196)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)
2007-02-14 17:50:46,187 FATAL (PartnerInfoAction.java:563) - une erreur inconnue s est produite : error casted from Hibernate to CFECException
The problem comes from the fact that once a commit is performed, the session seems to be closed, and I can not make a rollback.
I guess I can add a test
Code:
if(tx!=null && tx.isActive()) tx.rollback();
but I would like to understand how to setup correctly my hibernate.cfg.xml file.
I found some information is this post
http://forum.hibernate.org/viewtopic.php?t=948638&highlight=releasemode.
So, I tried to use the auto_close_session and release_mode properties like this
<property name="hibernate.transaction.auto_close_session">false</property>
<property name="hibernate.connection.release_mode">on_close</property>
but I still don't manage to setup the hibernate configuration properly to have my code run.
Please find below the HibernateUtil I use:
Code:
package hibernate;
import java.sql.Connection;
import org.apache.log4j.Logger;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
public class HibernateUtil {
static Logger logger = Logger.getLogger(HibernateUtil.class);
private static final SessionFactory sessionFactory;
static {
try {
// Crée la SessionFactory
sessionFactory = new Configuration().configure().buildSessionFactory();
} catch (HibernateException ex) {
throw new RuntimeException("Problème de configuration : " + ex.getMessage(), ex);
}
}
private static final ThreadLocal session = new ThreadLocal();
public static Session currentSession() throws HibernateException {
long beg= System.currentTimeMillis();
logger.debug("currentSession begin ==> ");
Session s = (Session) session.get();
// Ouvre une nouvelle Session, si ce Thread n'en a aucune
if (s == null) {
s = sessionFactory.openSession();
session.set(s);
}
logger.debug("currentSession end ==> process="+( System.currentTimeMillis()-beg) );
return s;
}
/**
* creation d'une session hibernate a partir d'une connection sql pour les cas ou on melange sql et hibernate
* si possible, utiliser la methode statique
*/
public Session currentSession(Connection con) throws HibernateException {
long beg= System.currentTimeMillis();
logger.debug("currentSession begin ==> ");
Session s = (Session) session.get();
s = sessionFactory.openSession(con);
session.set(s);
logger.debug("currentSession end ==> process="+( System.currentTimeMillis()-beg) );
return s;
}
public static void closeSession() throws HibernateException {
Session s = (Session) session.get();
session.set(null);
if (s != null)
s.close();
}
}
thank you for your help
__cyrille__
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