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Getting error: Could not locate TransactionManager

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robinbajaj

Post subject: Getting error: Could not locate TransactionManager

Posted: Fri Aug 10, 2007 3:21 am

Newbie

Joined: Fri Aug 10, 2007 2:04 am
Posts: 7

Hi there,
After reading the following link :
Read this: http://hibernate.org/42.html

Code:

I am trying to use JTA's UserTransaction interface for transaction demarcation.
When my JunitTest class PatientTest calls getNextPatient() method of my business logic class PatientManager, it gets the error
org.hibernate.HibernateException: Could not locate TransactionManager

I would appreciate some help in resolving this issue,

Hibernate version:3.2.4 SP1
App Server version:JBoss-4.2.1GA
Name and version of the database : PostgreSQL 8.1

Here's my Hibernate.cfg.xml
Hibernate.cfg.xml

http://rafb.net/p/XpwAFE18.html

Acc. to reference docs, section 3.8.2,

http://www.hibernate.org/hib_docs/reference/en/html/session-configuration.html#configuration-optional-jndi

I am using the following property
for automatic JNDI binding of sessionFactory. But I have not configured anything explicitly on the server side. Is that okay ?

Code:

<property name="hibernate.session_factory_name">
      java:hibernate/SessionFactory
</property>

Similarly, I have taken this property from section 3.7 (haven't configured anything explicitly on the server side )

Code:

<property name="jta.UserTransaction">
         java:comp/UserTransaction
</property>

For property,

Code:

<property name="hibernate.connection.datasource">
         postgresDS
      </property>

For this one, i have done the required setup on the server side.
I have dropped my postgres-ds.xml file in <jboss-install-dir>\\server\default\deploy folder with following contents
http://rafb.net/p/4x761u63.html

A separately written unit-test that looks up this datasource as

Code:

InitialContext ic = new InitialContext();
DataSource ds=(DataSource) ic.lookup("postgresDS");

is working fine. So datasource settings are fine in this case.

Here's my JunitTest class - named PatientTest.java
http://rafb.net/p/XeCRbb39.html

Here's my businessObject class - named PatientManager.java
http://rafb.net/p/n30BBc18.html

Full stack trace of any exception that occurs:
http://rafb.net/p/U3pl8Q32.html

Debug level Hibernate log excerpt:
http://rafb.net/p/stjSz681.html

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mkarami

Post subject:

Posted: Fri Aug 10, 2007 6:05 am

Newbie

Joined: Tue Jul 31, 2007 10:32 am
Posts: 17
Location: Amsterdam

Hi,
check the following link to see how to do the configuration:

http://www.jboss.org/?module=bb&op=viewtopic&t=70614

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robinbajaj

Post subject:

Posted: Fri Aug 10, 2007 12:09 pm

Newbie

Joined: Fri Aug 10, 2007 2:04 am
Posts: 7

thanks for the reply mkarami.
I am using Core Hibernate (instead of EJB3) with JTA (from jboss App server).
Secondly, if i look close when dunks reported this problem,

Code:

org.hibernate.HibernateException: Could not locate TransactionManager

his settings were similar as mine which were

Quote:

The solution to this problem posted by jacekolszak was to have this code piece

Quote:

EJB3StandaloneBootstrap.boot(null);

deployer = new EJB3StandaloneDeployer();
deployer.setJndiProperties(getInitialContextProperties());
deployer.create();
deployer.start();
ctx = getInitialContext();
.
.
.
public static InitialContext getInitialContext() throws Exception {
Hashtable props = getInitialContextProperties();
return new InitialContext(props);
}

private static Hashtable getInitialContextProperties() {
Hashtable<String, String> props = new Hashtable<String, String>();
props.put("java.naming.factory.initial",
"org.jnp.interfaces.LocalOnlyContextFactory");
props.put("java.naming.factory.url.pkgs",
"org.jboss.naming:org.jnp.interfaces");
return props;
}

I am not sure how I can setup these initialContextProperties correctly when working with core Hibernate, I gave it a shot to get as close as possible. But I am still getting the same exact error and debug outputs.

Here's my latest Patient Manager
http://rafb.net/p/mQWNAq93.html

The only change I have done is this code block

Code:

UserTransaction utx=null;
   Context ctx=null;
   public PatientManager() throws Exception{
      Configuration conf = new Configuration();
      conf.setProperties(getInitialContextProperties());
      utx= (UserTransaction) getInitialContext().lookup("java:comp/UserTransaction");
   }
   public static InitialContext getInitialContext() throws Exception {
      Hashtable props = getInitialContextProperties();
      return new InitialContext(props);
      }
 
      private static Properties getInitialContextProperties() {
      Properties props = new Properties();
      props.put("java.naming.factory.initial",
      "org.jnp.interfaces.LocalOnlyContextFactory");
      props.put("java.naming.factory.url.pkgs",
      "org.jboss.naming:org.jnp.interfaces");
      return props;
   }

it uses Configuration object instead of EJB3StandaloneDeployer(I am assuming they are each other's equivalents in Hibernate core and EJb3 worlds)

My PatientTest and hibernate.cfg.xml stay the same.
Here's my Hibernate.cfg.xml

http://rafb.net/p/XpwAFE18.html

Here's the PatientTest
http://rafb.net/p/XeCRbb39.html

I notice I get this exception in my HibernateUtil class's static block..
Here's my HibernateUtil
http://rafb.net/p/s6XFlj76.html

Here's the exception trace again
http://rafb.net/p/0PyMuw56.html

Here's the DEBUG output again..
http://rafb.net/p/wK5Hdn55.html

I don't know why, please help ...

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