I'm attempting to use Orion pretty much for the easy custom authentication/user
management and very little else. That all works pretty well -- as an ex-JBoss user,
let me say that I like the straightforward approach.
So I have a bunch of BMP beans that wrap some legacy software. The legacy software
comes complete with legacy transactions and I'm trying to figure out the best way to
deal with this such that:
1) I can reliably pick up the right legacy transaction at the right time in my bean
methods
2) a given user can have more than one transaction on the go at once in separate
threads
Now, I can write any old middle layer I choose to associate specific legacy
transactions with some object/value/concept from the EJB layer (in a hashtable, for
example), but I don't have a good enough grasp on the Orion container to figure out
which of the following items are going to be constants between different threads or
method calls to the server:
a) EJBContext (EntityContext, SessionContext): these would seem to be out of
consideration, as they are reused between beans and threads, and a transaction might
extend throughout several method calls in both session and entity beans.
b) UserTransaction: I could associate a UserTransaction instance with a legacy
transaction instance. If I start a transaction in a session bean, which then calls
entity bean methods, is the same UserTransaction instance going to result from calls
to context.getUserTransaction() in the contexts for the various beans?
c) Principal name: I could associate a legacy transaction with a principal name if not
for wanting to allow each principal the option of multiple concurrent transactions in
different threads.
d) Thread: a legacy transaction could be associated with a specific server thread. Is
this going to work? Are UserTransactions associated with a specific thread throughout
their lifetime? Is this thread the same thread that is used for separate method calls
that fall within the transaction?
So, any suggestions or ideas from the list on this one?
Reason
http://www.exratio.com/
