[jboss-dev-forums] [Design of JBoss jBPM] - Re: does optimistic locking always work ?

[tom.baeyens@jboss.com]

session.load(class, id, LockMode.UPGRADE)   or session.lock(processInstance, LockMode.UPGRADE)  results in "SELECT ... FOR UPDATE" on databases that support pessimistic locking, this will result in a pessimistic lock.

We expose the lock already in the JbpmContext (or in the persistence service, i don't remember).   So users can start adding pessimistic locks themselves whenever they want to.

But I want to work out a solution/workaround/fix that works by only using optimistic locking.



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