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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?atlOrigin=eyJpIjoiYjVjOTlhZWFhOTQ2NDFhNGExYWUxMjBiNjc3YjkzZjkiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Hibernate ORM</a> / <a href="https://hibernate.atlassian.net/browse/HHH-13299?atlOrigin=eyJpIjoiYjVjOTlhZWFhOTQ2NDFhNGExYWUxMjBiNjc3YjkzZjkiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-4bdfef71-f2cd-42e5-9ba7-7743f105f66d" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-13299?atlOrigin=eyJpIjoiYjVjOTlhZWFhOTQ2NDFhNGExYWUxMjBiNjc3YjkzZjkiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">HHH-13299</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-13299?atlOrigin=eyJpIjoiYjVjOTlhZWFhOTQ2NDFhNGExYWUxMjBiNjc3YjkzZjkiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Using a @mantoToOne relation in combination of an abstract class (@Inheritance) does not generate the @OnDelete action in the DDL</a> </span> </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">Issue Type:</th>
<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-4bdfef71-f2cd-42e5-9ba7-7743f105f66d" 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"> 5.2.17 </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">Assignee:</th>
<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"> 05/Mar/2019 00:56 AM </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"> spring-boot-starter-data-jpa </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">Priority:</th>
<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-trivial-46f44955-1c58-4097-9988-6c39e92ee6a4" height="16" width="16" border="0" align="absmiddle" alt="Trivial" style="vertical-align: text-bottom"> Trivial </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">Reporter:</th>
<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="christian.kindler" style="color:#6c797f;; color: #3b73af; text-decoration: none" id="email_christian.kindler" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?accountId=5b966359d0b4022bdc51cc6a"> Christian Kindler </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 have several Entities which have a reference to the same instance of another Entity-Object like so:</p>
<div class="code 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 class="code-java" style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal">
@Data
@Entity
@OnDelete(action = OnDeleteAction.CASCADE)
<span class="code-keyword" style="color: #000091">class </span>A {
@Id
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">Long</span> id;
}
@Data
@Entity
@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
<span class="code-keyword" style="color: #000091">abstract</span> <span class="code-keyword" style="color: #000091">class </span>B {
@Id
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">Long</span> id;
@OnDelete(action = OnDeleteAction.CASCADE)
@ManyToOne(fetch = FetchType.EAGER, optional = <span class="code-keyword" style="color: #000091">false</span>, cascade = CascadeType.REMOVE)
<span class="code-keyword" style="color: #000091">private</span> A a;
}
@Data
@Entity
<span class="code-keyword" style="color: #000091">class </span>C <span class="code-keyword" style="color: #000091">extends</span> B {
}
@Data
@Entity
<span class="code-keyword" style="color: #000091">class </span>D <span class="code-keyword" style="color: #000091">extends</span> B {
}
</pre>
</div>
</div> <p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0">My problem is I just want to delete cascade the instance `A`. The number of Entities referencing A is not known upfront (hence the class is abstract). The DDL generated of the concrete classes `C` and `D` does not contain the `OnDelete` action anymore, so I had to work around using `@JoinColumn` together with `@ForeignKey` lke so: @JoinColumn(foreignKey = @ForeignKey(foreignKeyDefinition="FOREIGN KEY (trance_id) REFERENCES m_trace(id) ON DELETE CASCADE"))</p> </td>
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{
"@context": "http://schema.org",
"@type": "EmailMessage",
"description": "View Issue",
"potentialAction": {
"@type": "ViewAction",
"target": "https://hibernate.atlassian.net/browse/HHH-13299?inbox=true&",
"name": "View Issue"
},
"publisher": {
"@type": "Organization",
"name": "Atlassian",
"url": "https://www.atlassian.com"
}
}
</script>
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