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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-12930" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-c158370c-7c84-418a-abd8-e4c4985676f1" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-12930" style="color: #3b73af; text-decoration: none">HHH-12930</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-12930" style="color: #3b73af; text-decoration: none">non-primary embedded composite @ManyToOne mapping fails -> AnnotationException: referencedColumnNames ... not mapped to a single property</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-c158370c-7c84-418a-abd8-e4c4985676f1" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"> Bug </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">Affects Versions:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> 5.0.12, 5.2.17 </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"> Unassigned </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">Components:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> hibernate-core </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"> 26/Aug/2018 23:05 PM </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">Environment:</th>
<td style="padding: 0; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> Linux <br> openjdk 1.8.0_181 <br> spring-boot 2.0.4.RELEASE <br> Hibernate 5.2.17 </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-de45ea94-7df4-47b8-a915-1eb3426b4df3" 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="m.stendler" id="email_m.stendler" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=m.stendler" style="color:#6c797f;; color: #3b73af; text-decoration: none">stendler</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0; margin-top: 0">I am not really sure if it is a bug or a user error on my end. But I'm fairly certain that I do everything correctly.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0"><b>Premisses / things known to work:</b></p>
<ul class="alternate" type="square">
<li>Composite @NaturalId see <span class="jira-issue-macro resolved" data-jira-key="HHH-11255"> <a href="https://hibernate.atlassian.net/browse/HHH-11255" class="jira-issue-macro-key issue-link" title="@NaturalId mapping fails when using a composite natural identifier" style="color: #3b73af; text-decoration: none"> <img class="icon" src="https://hibernate.atlassian.net/secure/viewavatar?size=xsmall&avatarId=12150&avatarType=issuetype"> HHH-11255 </a> <span class="aui-lozenge aui-lozenge-subtle aui-lozenge-success jira-macro-single-issue-export-pdf" style="background: #cccccc; border: 1px solid #cccccc; border-radius: 3px; color: #333333; display: inline-block; font-size: 11px; font-weight: bold; line-height: 99%; margin: 0; padding: 2px 5px; text-align: center; text-decoration: none; text-transform: uppercase; background-color: #ffffff; border-color: #cccccc; color: #333333" bgcolor="#ffffff">Closed</span> </span> </li>
<li>@ManyToOne mapping with composite Primary Keys</li>
<li>@ManyToOne mapping with @NaturalId</li>
</ul> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0"><b>Expectation:</b><br> @ManyToOne mapping with non-primary embedded key (e.g. @NaturalId)</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0"><b>Example:</b></p>
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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">
<span class="code-keyword" style="color: #000091">class </span>Region {
@NaturalId
@Embedded
<span class="code-keyword" style="color: #000091">private</span> PostalCode postalCode;
}
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@Embeddable
@MappedSuperclass
<span class="code-keyword" style="color: #000091">class </span>PostalCode {
<span class="code-keyword" style="color: #000091">protected</span> <span class="code-object" style="color: #910091">String</span> countryCode;
<span class="code-keyword" style="color: #000091">protected</span> <span class="code-object" style="color: #910091">int</span> zipCode;
}
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<span class="code-keyword" style="color: #000091">class </span>Town {
@NaturalId
@Embedded
<span class="code-keyword" style="color: #000091">private</span> TownCode townCode;
@ManyToOne
@JoinColumns(value = {
@JoinColumn(name = <span class="code-quote" style="color: #009100">"country_code"</span>, referencedColumnName = <span class="code-quote" style="color: #009100">"country_code"</span>),
@JoinColumn(name = <span class="code-quote" style="color: #009100">"zip_code"</span>, referencedColumnName = <span class="code-quote" style="color: #009100">"zip_code"</span>)
}
<span class="code-keyword" style="color: #000091">private</span> Region region;
}
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<span class="code-keyword" style="color: #000091">class </span>TownCode <span class="code-keyword" style="color: #000091">extends</span> PostalCode {
<span class="code-keyword" style="color: #000091">protected</span> <span class="code-object" style="color: #910091">String</span> town;
}
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0"><b>Result:</b></p>
<div class="preformatted panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
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<pre style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal; white-space: pre; word-break: normal; word-wrap: break-word; word-break: break-all; white-space: pre-wrap">Caused by: org.hibernate.AnnotationException: referencedColumnNames(country_code, zip_code) of Town.region referencing Region not mapped to a single property
at org.hibernate.cfg.BinderHelper.createSyntheticPropertyReference(BinderHelper.java:321) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.cfg.ToOneFkSecondPass.doSecondPass(ToOneFkSecondPass.java:101) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processEndOfQueue(InFlightMetadataCollectorImpl.java:1771) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.processFkSecondPassesInOrder(InFlightMetadataCollectorImpl.java:1715) ~[hibernate-core-5.2.17.Final.jar:5.2.17.Final]
</pre>
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</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">The error message sounds like I did a mistake. But I specified the mapped property via the @JoinColumns-Annotation. This mapping would work if it were a primary key.</p> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">Additionally it would probably be helpful if one could add the property/ies to map as a @ManyToOne parameter. But that probably will require an JPA API change if I understand this correctly.</p> </td>
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