[Persistence, JBoss/CMP, Hibernate, Database] - Can't catch exception caused by unique constraint?
by Dellerium
Hi forum!
I'm trying to write a small application for testing and learning...
I've created an entity (useraccount) with a unique constraint on firstname. To test it, I wrote a small junit test which gets the reference via jndi lookup. Insert a new useraccount is no problem. So I tried to test the unique constraint. As it should, I get an exception if I try to persists a second, identical useraccount.
But I'm not able to catch the exception.... I thought, that it would be a good idea, to throw some exeptions when for example an identical useraccount should be persist, but atm I don't know, how get this running...
I also found this post: http://www.jboss.org/index.html?module=bb&op=viewtopic&t=71611&start=0&po... but I didn't figure out, what I've done wrong...
Jboss 5.0.0.GA, ejb3
best regards,
Andre
Exception in serverlog:
| 19:11:47,775 WARN [JDBCExceptionReporter] SQL Error: 0, SQLState: null
| 19:11:47,776 ERROR [JDBCExceptionReporter] Batch-Eintrag 0 insert into t_useraccount (version, disabled, personOfUserAccount, userlogin, userPassword, id) values (NULL, 0, NULL, foo, bar, 2) wurde abgebrochen. Rufen Sie 'getNextException' auf, um die Ursache zu erfahren.
| 19:11:47,776 WARN [JDBCExceptionReporter] SQL Error: 0, SQLState: 23505
| 19:11:47,776 ERROR [JDBCExceptionReporter] FEHLER: doppelter Schluesselwert verletzt Unique-Constraint ût_useraccount_userlogin_keyë
| 19:11:47,776 ERROR [AbstractFlushingEventListener] Could not synchronize database state with session
| org.hibernate.exception.ConstraintViolationException: Could not execute JDBC batch update
| at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:94)
| at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
| at org.hibernate.jdbc.AbstractBatcher.executeBatch(AbstractBatcher.java:275)
| at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:266)
| at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:167)
|
| [.......]
|
My SLSB:
| public Integer saveUserAccount(UserAccount userAccount) throws UserAccountAlreadyExistException {
|
| try {
| em.persist(userAccount);
| em.flush();
| return userAccount.getId();
| }
| catch (EntityExistsException eee) {
| throw new UserAccountAlreadyExistException();
| }
| catch (ConstraintViolationException e) {
| throw new UserAccountAlreadyExistException();
| }
|
| }
|
UserAccountAlreadyExistException:
| @ApplicationException(rollback=true)
| public class UserAccountAlreadyExistException extends Exception {
|
| private static final long serialVersionUID = 1L;
|
| public UserAccountAlreadyExistException() {
| super();
| }
|
| public UserAccountAlreadyExistException(String s) {
| super(s);
| }
| }
|
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17 years