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<td class="page-title-pattern-first-line " style="padding: 0; 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-11391" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-18622591-22a4-4426-ae27-f5a6806a3949" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-11391" style="color: #3b73af; text-decoration: none">HHH-11391</a> </td>
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<td style="vertical-align: top;; padding: 0; 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-11391" style="color: #3b73af; text-decoration: none">Improved metadata about a basic-typed value</a> </span> </td>
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<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-avatar-18622591-22a4-4426-ae27-f5a6806a3949" height="16" width="16" border="0" align="absmiddle" alt="Improvement" style="vertical-align: text-bottom"> Improvement </td>
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<th style="color: #707070; font: normal 14px/20px Arial, sans-serif; text-align: left; vertical-align: top; padding: 2px 0">Created:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 12/Jan/2017 11:57 AM </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 6.0.0.Alpha1 </td>
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<td class="has-icon" style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <img src="cid:jira-generated-image-static-major-e9418688-c5a2-44cd-902b-765adada59a3" height="16" width="16" border="0" align="absmiddle" alt="Major" style="vertical-align: text-bottom"> Major </td>
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<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="steve" id="email_steve" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=steve" style="color:#6c797f;; color: #3b73af; text-decoration: none">Steve Ebersole</a> </td>
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<pre class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@Entity
class SomeEntity {
@Basic
<span class="code-object" style="color: #910091">String</span> someStringValue;
}
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">So we know that `someStringValue` is a basic type and that its Java type is String. But we are still left to guess how to handle this in terms of the underlying database column. Atm we make an assumption based on the fact that the field type is a String, we use that to resolve that to Hibernate's <tt>StringType</tt> which maps a String to a VARCHAR.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">There are already recognized "hints" intended to help alter the relational understanding. E.g. <tt>@Lob</tt>, <tt>@Nationalized</tt>, etc. What is being proposed here are some additions to these. Specifically I can see:</p>
<ol>
<li><tt>@JdbcTypeCode</tt> - i.e. <tt>@JdbcTypeCode(Types#LONGNVARCHAR) @Basic String someStringValue;</tt></li>
<li><tt>@MutabilityPlan</tt></li>
<li><tt>@Comparator</tt></li>
<li>some annotation to specify an "equals and hashCode" stratgey</li>
<li>some annotation to specify a wrap/unwrap strategy</li>
</ol> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">The last 4 really just describe the components of a JavaTypeDescriptor, so we'd only need those if a JavaTypeDescriptor is not known.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">These values would also get picked up by AttributeConverter support for it to be able to better understand the various "types" (the 2 JavaTypeDescriptors and the SqlTypeDescriptor) involved in its conversion</p> </td>
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