Hi out there,
i have a little problem with transactions (its my first try to use them...).
Following Scenario:
I want to call 2 methods of a Session Bean from a Servlet. Both methods are creating a
new CMP-Object.
Well...the first Object should be removed from Database if the second fails...So I
thought why not using Transactions.
This looks like the following:
javax.naming.Context jndiContext = new javax.naming.InitialContext();
| javax.transaction.UserTransaction ut = (javax.transaction.UserTransaction)
jndiContext.lookup("UserTransaction");
| ut.begin();
| User user=sessionbean1.createNewUser();
| Adress adress=sessionbean2.createNewAdress();
| ut.commit;
This code seems to work fine. If sessionbean2 fails, the correct ut.rollback() in the
catch-Block (not shown above) is used (thanks to the debugger;)). But if I look in the
Database, the entry from sessionbean1 is not removed...
Where is the problem?
Session Beans and CMP'S are both set to transaction type "supports" (with xdoclet).
I'm using MySQL 4.0.15-nt (perhaps the database is the problem?).
Cant I start transactions from the servlet???
Bye
Mark
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