I wasn't talking about whether the JPA stuff was expected. I know that's how it's supposed to work. I was talking about the camel side of things. Is this just what I'm going to have to do, put flush() calls in all my code so that my error handling will kick in? Is that what other folks do? Am I even setting up my transaction handling stuff correctly (my JMS component uses the JpaTransactionManager and so does my route)?
On Fri, Nov 9, 2012 at 9:48 AM, Claus Ibsen <[email protected]> wrote: > On Fri, Nov 9, 2012 at 3:30 PM, James Carman <[email protected]> > wrote: >> I have created a little sandbox project to exhibit the behavior I am seeing: >> >> https://github.com/jwcarman/camel-transaction >> >> Right now, I only have two test cases in there and the only difference >> between the two is that I'm using this code for the passing one: >> >> https://github.com/jwcarman/camel-transaction/blob/master/src/main/java/com/carmanconsulting/camel/jpa/MyEntityRepositoryPersistWithFlush.java >> >> and I'm using this code for the failing one: >> >> https://github.com/jwcarman/camel-transaction/blob/master/src/main/java/com/carmanconsulting/camel/jpa/MyEntityRepositoryPersistNoFlush.java >> >> The difference is whether or not I use the flush() call or not on my >> EntityManager. If I do, everything works fine, since the exceptions >> I'm causing (null value constraint and length constraint violations) >> are thrown immediately during route processing. If I do not, then the >> exception isn't thrown until commit() is called on the >> PlatformTransactionManager. Is this expected behavior? > > I would assume so. As to my knowledge the entity manager controls the > database, and therefore may defer writing until an explicit flush is > called / or a TX is committed. So if you try to set invalid data, it > may not validate this until a write. Though maybe there is some way > for it to validate this, in case there is some constrainsts on the > Entity class it would know about. Maybe there is something with Bean > Validation Spec you can do? > > I suggest to read about JPA spec and the javadoc of the JPA API / > vendor you use. > > > > > -- > Claus Ibsen > ----------------- > Red Hat, Inc. > FuseSource is now part of Red Hat > Email: [email protected] > Web: http://fusesource.com > Twitter: davsclaus > Blog: http://davsclaus.com > Author of Camel in Action: http://www.manning.com/ibsen
