Hibernate version: 2.1.8

Hi all.

Is there an easy way to make hibernate check for midaircollisions? I mean that while I'm editing an object another one updates it. So I should not be able to save my changes, since it would overwrite the changes of the other user.

I have a modifiedDate field on the object which could be compared at save time to check whether there was an update in between.

Thanks a lot!

What you're looking for is optimistic locking, have a look in the docs about the version property http://www.hibernate.org/hib_docs/reference/en/html/mapping.html#mapping-declaration-version
or the timestamp property http://www.hibernate.org/hib_docs/reference/en/html/mapping.html#mapping-declaration-timestamp

thanks.

Unfortunately this doesn't work, because the version attribute is part of a component. I wasn't able to map this.

What I did now, is an Interceptor which checks this. But the optimistic locking would for sure have been better.