[jboss-dev-forums] [Design of JBossCache] - Re: Node removal not working with Invalidation?

[bstansberry@jboss.com]

In my example above, identity == userId, which would presumably be unchanged. If they used some system with synthetic primary keys and a uniqueness constraint on the userId, then no problem.

Re: explicit versioning being meant to represent database versioning, true enough, but using a simple increment counter is a pretty common way to do database versioning.

Note that all of my discussion here isn't meant to advocate against keeping a tombstone on the local node; just trying to identify problem areas and see how significant.  Seems like this is a pretty small corner case that's preventable by using a synthetic primary key or a non-repeatable db version.

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