See inline...
On Tue, Apr 18, 2017 at 8:36 PM Gail Badner <gbadner(a)redhat.com> wrote:
Should Hibernate support negative sequence values?
Absolutely. Hibernate has historically supported decrementing and/or
negative values - so yes that should continue to work.
If so, is my proposed fix OK?
Define "OK" :)
As you said, your testing confirms that your proposed change "works". So
from that simple perspective, yes it is "OK". Although I think it can, and
maybe should, be slightly different - namely we really only need to encode
the increment value into the SEQUENCE definition when that increment is
something other than 1 (one) since that is the default increment for
SEQUENCEs. So something like:
NoopOptimizer {
...
public boolean applyIncrementSizeToSourceValues() {
assert getIncrementSize() != 0;
return getIncrementSize() != 1;
}
}
Can increment for no-op be anything other than 1 or -1? Zero is not valid.
1 and -1 are both valid. But what about 2 or -2? I'm not sure that makes
sense. The `!= 1` check handles that case.
However, I do have a concern about the design here and moving forward. I
think there is some amount of technical debt here, and I think there was a
lot of confusion present even in the original code I wrote here.