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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; }
}
</style>
<div id="email-body">
<table id="email-wrap" align="center" border="0" cellpadding="0" cellspacing="0" style="background-color:#f0f0f0;color:#000000;width:100%;">
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<img id="email-avatar" src="https://hibernate.onjira.com/secure/useravatar?ownerId=brmeyer&avatarId=11140" alt="" height="48" width="48" border="0" align="left" style="padding:0;margin: 0 16px 16px 0;" />
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<a class="user-hover" rel="brmeyer" id="email_brmeyer" href="https://hibernate.onjira.com/secure/ViewProfile.jspa?name=brmeyer" style="color:#6c797f;">Brett Meyer</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-1904'>HHH-1904</a>
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<a style='color:#6c797f;text-decoration:none;' href='https://hibernate.onjira.com/browse/HHH-1904'><strong>Identifier too long (reborn)</strong></a>
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<div class="comment-block" style="background-color:#edf5ff;border:1px solid #dddddd;color:#000000;padding:12px;"><p>I posed the following questions to the hibernate-dev mailing list – figured I'd try here as well:</p>
<blockquote>
<p>I've been working a bit on <a href="https://hibernate.onjira.com/browse/HHH-1904" title="Identifier too long (reborn)">HHH-1904</a> <span class="error">[1]</span> – truncating identifiers based on a maximum length provided by the Dialect. As an example, a quick test that has a variety of uniques produced the constraint names in <span class="error">[2]</span>.</p>
<p>My initial strategy took metamodel's ObjectName and modified it to automatically handle name segments and quoting. For example, `UK_FooClass_1` would be broken down into "UK", "FooClass", and "1" segments, "_" would be the delimiter, and quoting would be added back in whenever necessary.</p>
<p>I'm trying to find a decent strategy for truncating the name, either as a whole or with each segment. The problem that I keep running into is that it's going to be difficult to dynamically ensure that naming collisions are avoided. For example, if embedded classes are used as entities, you could have 2 constraint names like "UK_OuterClass$InnerClassA_1" and "UK_OuterClass$InnerClassB_1". If the middle segment is truncated at or before the "$", it won't work.</p>
<p>Should we try to enforce a rule that the "unique bits" be in a specific segment or position? Alternatively, "truncate" by hashing the name (as we do with FK names now – of course, no human readability)? Any other ideas?</p>
<p>Admittedly, I may be overthinking it. It's primarily the Hibernate-generated constraint names that we need to worry about...</p>
<p><span class="error">[1]</span> <a href="https://hibernate.onjira.com/browse/HHH-1904">https://hibernate.onjira.com/browse/HHH-1904</a><br/>
<span class="error">[2]</span> <a href="https://gist.github.com/brmeyer/bfbc78c770904cc6fca8">https://gist.github.com/brmeyer/bfbc78c770904cc6fca8</a></p></blockquote></div>
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