commit 1324d618941127d1b76cb22c96cb75ec73ab8fa7
author David Ostrovsky <david@ostrovsky.org> Sat Jun 14 16:00:53 2014 +0200
committer David Ostrovsky <david.ostrovsky@gmail.com> Wed Jun 25 06:06:30 2014 +0000
tree 40e02e1ff10cf34869013f333ac64b31c7a07869
parent 507b5e88e43c57aaf9ecd192818e6871e1764e49

Add transaction support for Jdbc dialects

Transaction support is a no-op for Jdbc dialects.
In some rare cases it's however indispensable to have transaction
support, as in:

  beginTransaction();
  try {
    insertPatchSetAncestors();
    insertPatchSets();
    updateChange();
    commit();
  } catch (OrmException e) {
    rollback();
  }

I assume that I65e111bed was trying to achieve just that.  Make it work
also for Jdbc dialects and not only for NoSQL dialects.

Bug: issue 2034
Bug: issue 2246
Bug: issue 2383
Bug: issue 2702
Change-Id: I29ab37e1cbc78468cb3f8f6abfd1bf54359e6090