I was wondering how can I cascade a pessimistic lock across all child entities in a onetomany where the child entities reside in other tables and it is unidirectional?

I'm operating within a JEE5 environment so would like to make use of standard JPA EM calls if possible so at the moment I'm doing something like this.



Now assuming x has two unidirectional @OneToMany linked by a jointable does doing this cascade a pessimistic lock across all of the childen?

Thanks, S.D.

Never mind, I found this when looking at org.hibernate.annotations.CascadeType.LOCK

This option cascades the lock() operation to associated instances, reattaching
them to the persistence context if the objects are detached. Note that the
LockMode isn’t cascaded; Hibernate assumes that you don’t want pessimistic
locks on associated objects—for example, because a pessimistic lock on the
root object is good enough to avoid concurrent modification.