Hello everyone,

I have generated daos for my appplication but there is a problem when I call the dao from a test class. The error I get is:

Could not locate SessionFactory in JNDI
Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial

My config file:

<hibernate-configuration>
<session-factory name="java:/hibernate/HibernateFactory">
<property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property>
<property name="connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property>
<property name="dialect">org.hibernate.dialect.OracleDialect</property>
<property name="connection.username">test</property>
<property name="connection.password">test</property>
<property name="connection.pool_size">2</property>
<property name="current_session_context_class">thread</property>
<property name="show_sql">true</property>

<!-- mappings -->

</session-factory>
</hibernate-configuration>

The getSessionFactory method within dao:

private final SessionFactory sessionFactory = getSessionFactory();

protected SessionFactory getSessionFactory() {
try {
return (SessionFactory) new InitialContext().lookup("java:/hibernate/HibernateFactory");
}
catch (Exception e) {
log.error("Could not locate SessionFactory in JNDI", e);
throw new IllegalStateException("Could not locate SessionFactory in JNDI");
}
}



If I need to set values for hibernate.jndi.url and hibernate.jndi.class, what values should they be set to?
I use hibernate 3.1, oracle 10g and HibernateTools-3.2.0.beta6, no application server.

My test class initialises the session factory in a static block:

private static final SessionFactory sessionFactory;

static {
try {
sessionFactory = new Configuration().configure().buildSessionFactory();
} catch (Throwable ex) {
log.info("Initial SessionFactory creation failed." + ex);
throw new ExceptionInInitializerError(ex);
}
}

public static SessionFactory getSessionFactory() {
return sessionFactory;
}

public static void main(String[] args){
session = getSessionFactory().openSession();
tx = session.beginTransaction();
TestDao dao = new TestDao();
......
}


Thanks

Since you are using Hibernate from a standalong environment you are really not binding the SessionFactory to the JNDI name you have specified.

Typically you would do this in a managed environment like inside a J2EE envrionment.

I'm not sure if your "static" block raises a Exception as if a name is specificed Hibernate would try to bind the SessionFactory to JNDI and in a standalong case you don't have a Naming Service that you can use, unless you probably use the dfault Naming service (File based if I'm correct) from Sun.

You may want to add the default jndi.properties that uses the Sun's default naming implementation.

Thanks for your reply

I tried using the default values (found in the hibernate.properties file which comes with hibernate)

#hibernate.jndi.class com.sun.jndi.fscontext.RefFSContextFactory
#hibernate.jndi.url file:/

but I still get the same error. I read somewhere in the reference that if these values are not defined then the default InitialContext will be used. However the error persists if I don't define them at all.

It is possible to bind the session factory to jndi in standalone applications, is it not?
If I can't do it using jndi then I should I try passing it to daos through the constructor or just define a setter method?

thanks

Well I managed to solve this.

In the config file:
<property name="jndi.class">com.sun.jndi.fscontext.RefFSContextFactory</property>
<property name="jndi.url">file:/</property>

2 jars in my classpath:
fscontext.jar
providerutil.jar

In my dao:
protected SessionFactory getSessionFactory() {
try {
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.fscontext.RefFSContextFactory");
return (SessionFactory) new InitialContext(env).lookup("java:/hibernate/HibernateFactory");
}
catch (Exception e) {
log.error("Could not locate SessionFactory in JNDI", e);
throw new IllegalStateException("Could not locate SessionFactory in JNDI");
}
}

Thanks again

EDIT: Solved! See below, in the next message.

I have the same problem but with your steps i'm unable to solve. My settings:

hibernate.cfg.xml


A session initializated somewhere with:


A similar dao class (here is the problem!!!!):


The jndi context seems created (/tmp/hibernate/.bindings)


But Still i get this errors:



Please, help me. I can't go forward until i i get this to work :-(

The problem was a lacking initialization parameter. Unfortunately, a LOT of guide/tutorial on internet simply assume that you can write in your root directory,
setting things like <property name="jndi.url">file:/</property>, that probably belongs to C: or your %systemdrive% . Obviously in *nix, you can't write to / without being root, so you naturally set things like <property name="jndi.url">file:///tmp</property> as i did.
The problem is that in this case you have to specify hibernate to look at /tmp, instead of the default (probably / for *nix or C: for windows). Adding the line indicated resolve the problem, and seems the correct way to do it. Yes, this was probably a fscontext/jndi RTFM, but this should definitively be in the hibernate faqs: a lot of similar questions in the forum are still unanswered.