Well, it depends on what context the code inside the JBoss JVM is
executing in and on what the 'something' is. If it's in a J2EE component
(servlet, JSP, EJB) JBoss will give it an Environment Naming Context
(ENC) which contains JNDI entries that are mapped into the components
environment by way of a deployment descriptor. These will be things like
'env-entry' entries and resource-ref entries from the deployment
descriptors. These will all be accessed within the JNDI context whose
name begins with 'java:comp/env'. These aren't accessable at all outside
of the JBoss process, or by other components (unless they've been mapped
identically for both components).
Additionally (and here we leave the comfy confines of specdom, for the
daredevil rush of implementation dependence), any name beginning with
'java:' is also available only within the JBoss process.
Lastly, this also depends on how you create the InitialContext within
and without JBoss. Within JBoss (or any other app. server), you should
always use the empty constructor ('new InitialContext()') This will
always give you the proper naming context for whatever application
server you're running in. Within J2EE components you should never pass
overriding properties to the InitialContext constructor (unless you're
using something like LDAP for data storage).
Outside of an application server, you can either specify a
jndi.properties file to set up the default JNDI settings (suggested), or
you can build a Properties object containing the right settings and pass
that it (not suggested). Depending on how you've got things set up, your
external code (outside the JBoss JVM) might be connecting to another
JBoss instance than you think it is, or it might be connecting to
another JNDI implementation.
That's probably more information than you really needed, but ask a vague
question and you'll get either a vague answer or a page from a textbook
8^}).
hth,
danch
Starsinic, Frank wrote:
> why does ctx.lookup("something") give me one result from within the
> JBoss JVM and a different result outside the JBoss JMV.
>
> thanks,
>
> frank
>
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