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/* Changing the layout to use less space for mobiles */
@media screen and (max-device-width: 480px), screen and (-webkit-min-device-pixel-ratio: 2) {
#email-body { min-width: 30em !important; }
#email-page { padding: 8px !important; }
#email-banner { padding: 8px 8px 0 8px !important; }
#email-avatar { margin: 1px 8px 8px 0 !important; padding: 0 !important; }
#email-fields { padding: 0 8px 8px 8px !important; }
#email-gutter { width: 0 !important; }
}
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<a class="user-hover" rel="silvaran" id="email_silvaran" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=silvaran" style="color:#6c797f;">Scott Van Wart</a>
commented on <img src="https://hibernate.onjira.com/images/icons/bug.gif" height="16" width="16" border="0" align="absmiddle" alt="Bug"> <a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-1168'>HHH-1168</a>
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<a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-1168'><strong>Problem combining locking and paging on Oracle</strong></a>
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<div class="comment-block" style="background-color:#edf5ff;border:1px solid #dddddd;color:#000000;padding:12px;"><p>Steve, do you anticipate being able to find a middle ground with the locking issue? I just updated my hibernate installation and noticed follow-on locking is used exclusively. I rely on pessimistic locking in the database for a number of projects so I've temporarily overridden useFollowOnLocking() to return false in my own Oracle dialect class. While FOR UPDATE can't be specified for any statement that has a lower-bound result limit and an order by, it should function in all other existing cases. So an upper-bound result limit (firstResult == 0 with maxResults set) with an ORDER BY works just fine:</p>
<p> SELECT ... FROM ... WHERE rownum <= :maxResults ORDER BY ... FOR UPDATE;</p>
<p>Obviously Hibernate now wraps the entire query once either firstResult or maxResults is set, but it's not strictly necessary. Adding this special case for firstResult == 0 would allow immediate pessimistic locking on any use case that said, "give me the earliest/latest/lowest/greatest X and lock them immediately", which happens to match my case perfectly (a task queue with many nodes pulling the "next available task" from the task table--causes optimistic lock failures with follow-on locking).</p></div>
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