Change JNDI variable value

[jocsch]

Hi there,
I wonder if there is a possibility to change a JNDI Integer value with the help of an admnistration tool, e.g. setting DEBUGLevel from 0 to 5 without changing the env-entry in the ejb-jar.xml and redeploying the bean.

Anybody how knows anything about that?

Thx,
Markus

[adrian.brock]

Not currently. It could probably be added as a
Managed Operation to org.jboss.ejb.Container

Regards,
Adrian

[cepage]

Sure, this code sets a JNDI Value:

public void addEntry(String jndiName, String entry)
{
try
{
InitialContext jndiContext = new InitialContext();
Util.bind( jndiContext, jndiName, entry );
}
catch ( NamingException namEx )
{
logger.error( "Exception caught in addEntry", namEx );
}
}

Make this code an exposed MBean method, and you're done.

Corby

[adrian.brock]

Well actually that won't work for env entries.
They are classloader based.
You have to temporarily swap in the container's
classloader - see invoke()

You probably also want to validate it is a property, not
an ejb-ref or a resource.

There's some conversion required of the entry
into the required class.

See org.jboss.ejb.Container.setUpEnvironment()
and org.jboss.ejb.MetaData.EnvEntryMetaData()

Regards,
Adrian