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<p style="margin: 10px 0 0 0">I'd actually like to start on this. And I'd like to try to squeeze it into 4.3.</p>
<p style="margin: 10px 0 0 0">I am tossing around the idea of re-purposing <tt>org.hibernate.annotations.Generated</tt> rather than defining a new <tt>org.hibernate.annotations.Dynamic</tt> annotation. I think that could work if we change the definition I proposed above to:</p>
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<pre class="code-java" style="margin: 10px 0 0 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
<span class="code-keyword" style="color: #000091">public</span> @<span class="code-keyword" style="color: #000091">interface</span> Generated {
/**
* @deprecated Use {@link #when} instead
*/
@Deprecated
GenerationTime value();
/**
* The <span class="code-keyword" style="color: #000091">enum</span> value representing when the value is generated.
*/
GenerationTime when() <span class="code-keyword" style="color: #000091">default</span> ALWAYS;
/**
* The generation strategy to use.
*/
<span class="code-object" style="color: #910091">Class</span><? <span class="code-keyword" style="color: #000091">extends</span> DynamicValueGenerator> generator() <span class="code-keyword" style="color: #000091">default</span> void.class;
}
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<p style="margin: 10px 0 0 0">The need for generator() to default to void.class would be necessary to allow existing usage to work. void.class would be interpreted as "just read back the value generated by the DB after INSERT/UPDATE".</p>
<p style="margin: 10px 0 0 0">Also, I'd like to consider a way to allow generator() to hook in with the <tt>org.hibernate.boot.registry.selector.spi.StrategySelector</tt> service (aka, DynamicValueGenerator would become a selectable strategy). That would require though the ability to use a String. Would it make the most sense to expose both and just document their mutual-exclusivity? Or just expose the String version (which takes away the type checking for the simple case where you want to specify the DynamicValueGenerator impl class locally)?</p>
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<td class="page-title-pattern-first-line " style="padding: 0px; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px; padding-top: 10px"> <a href="https://hibernate.atlassian.net/browse/HHH" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-2907" style="color: #3b73af; text-decoration: none"><img src="https://hibernate.atlassian.net/images/icons/issuetypes/newfeature.png" height="16" width="16" border="0" align="absmiddle" alt="New Feature" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-2907" style="color: #3b73af; text-decoration: none">HHH-2907</a>
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<td style="vertical-align: top;; padding: 0px; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://hibernate.atlassian.net/browse/HHH-2907" style="color: #3b73af; text-decoration: none">ability to apply 'generation strategy' to generated properties</a> </span>
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Currently, the support for generated properties allows only for db-generated values (ala triggers etc). Would be great to allow the user to provide a seperate (optional) strategy for generating the generated values.<br /> <br /> It would be nice to have a generic solution, which we can build on top of for the more common use cases. Also, we may need to use a name o...
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