EntryDuplicatedException is a custome exception I have:
|
| @ApplicationException(rollback = true)
| public class EntryDuplicatedException extends Exception {
|
| public EntryDuplicatedException() {
| }
|
| }
|
addDuplicatedMessage() is just a simple method to add the error message to the
view (FacesMessages..)
Finally, you should use @TransactionAttribute(REQUIRES_NEW) for the especific
method you want to recover after the transaction fails:
| @TransactionAttribute(REQUIRES_NEW)
| public void update(User entity) throws ConcurrencyException,
EntryDuplicatedException {
| try {
| em.merge(entity);
| em.flush();
| } catch (EntityExistsException ee) {
| throw new EntryDuplicatedException(ee);
| }
| }
|
|
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