Record the jbo exception in database

Question

Appreciate if you could provide inputs
User submit a web service request.Control goes to ADF bc model layer from service and performs validation in model layer.If validation is failed then record that error message and parameters (used in error message) in database.After recording the error message and parameters throw jboexception to service from model layer.
We have tried to insert the error message and parameters in the database (via View object) when validation is failed in model layer and then thrown Jboexception.But record is not getting inserted in database when jboexception is thrown from model layer.
Will jboexception thrown from model layer to service layer rollback whole transaction?
Jdev version used 11.1.1.5

Answer 1

The ADFbc model layer don't rollback a transaction by itself. This is left for the user or application to do. So either your code calls a rollback of the user calls rollback at some stage (e.g. by clicking a button which is calling rollback). If rollback is called, all changes which are part of the transaction are rolled back. If the insert of the exception into the db is part of the transaction, it's rolled back and you don't get the record in the DB.
Now to you use case. Have you thought about what happens if the jbo exception tells you that the DB can't be connected or ins't reachable? How do you insert the exception then?
In general it's not a good idea to use the same application to insert the exception into the db (one reason is the above problem). If you realy like to insert exceptions into the DB, you should think of using a message queue where you send messages to (with the needed information). The is then read by an other application and inserts the exception into the DB. If the DB can't be reached, the message remains in the queue until it finaly can inserted into the DB. On other nice thing is, that the queue keeps the order of the exceptions.
Timo