Hi,
I'm running the JoNAS open source EJB server on a Mac. The server is up
and running and I have built the session EJB example. This example
performs client managed transactions. Here's what I believe to be the
relevant lines of code (removing the try/catch clauses for readability):
initialContext = new InitialContext(env);
UserTransaction utx = null;
utx = (UserTransaction)
initialContext.lookup("javax.transaction.UserTransaction");
OpHome home = null;
home = (OpHome) initialContext.lookup("OpHome");
Op t1 = null;
t1 = home.create("User1");
utx.begin();
t1.buy(10);
When I run this, the call to utx.begin() does not appear to do anything.
If I turn on tracing, I do not see the trace message from the server
indicating a call to begin(). Furthermore, I see trace messages stating
that a new transaction has been started for buy() because none was in
progress.
Upon further investigation, I found that the JoNAS UserTransaction
implementation is a class called Current. This class is registered as
"javax.transaction.UserTransaction" but does not implement the Remote
interface.
Is the client merely calling into its local copy of Current returned by
lookup(). If so, is this a bug or a misunderstanding on my part.
I'm a newbie to EJB's, so please forgive me if this is a stupid question.
Thank you for your help.
- Mike Rubin
- Modulo Systems Corporation
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