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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-8787" style="color: #3b73af; text-decoration: none"><img src="https://hibernate.atlassian.net/images/icons/issuetypes/bug.png" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-8787" style="color: #3b73af; text-decoration: none">HHH-8787</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-8787" style="color: #3b73af; text-decoration: none">Join on non-PK not working when field embedded (but otherwise)</a> </span>
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Issue Type:
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Affects Versions:
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3.6.10
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Unassigned
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Components:
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core
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Created:
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10/Dec/13 12:38 AM
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Environment:
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MySQL
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Priority:
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Reporter:
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<td style="padding: 0px; border-collapse: collapse; font: normal 14px/20px Arial, sans-serif; padding: 2px 0 2px 5px; vertical-align: top"> <a class="user-hover" rel="blohmh" id="email_blohmh" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=blohmh" style="color:#6c797f;; color: #3b73af; text-decoration: none">Henning Blohm</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">When joining two entities on a non-primary-key-field, I get </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">
org.hibernate.MappingException: Repeated column in mapping <span class="code-keyword" style="color: #000091">for</span> entity: etc...
</pre>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">errors, if the target field is in an embeddable but it works otherwise. For example, the following does not work:</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #ccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #ccc; -moz-border-radius: 3px 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
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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">
@Entity
@Table(name = <span class="code-quote" style="color: #009100">"thing"</span>)
<span class="code-keyword" style="color: #000091">public</span> class Thing <span class="code-keyword" style="color: #000091">implements</span> Serializable {
@Id
@GeneratedValue(strategy = IDENTITY)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">Integer</span> id;
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">Integer</span> getId() {
<span class="code-keyword" style="color: #000091">return</span> id;
}
@Embedded
<span class="code-keyword" style="color: #000091">private</span> UniqueField uniqueField;
<span class="code-keyword" style="color: #000091">public</span> UniqueField getUniqueField() {
<span class="code-keyword" style="color: #000091">return</span> uniqueField;
}
<span class="code-keyword" style="color: #000091">public</span> void setUniqueField(UniqueField uniqueField) {
<span class="code-keyword" style="color: #000091">this</span>.uniqueField = uniqueField;
}
}
@Embeddable
<span class="code-keyword" style="color: #000091">public</span> class UniqueField {
@Column(name = <span class="code-quote" style="color: #009100">"unique_field"</span>, length=50, nullable=<span class="code-keyword" style="color: #000091">false</span>)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">String</span> value;
<span class="code-keyword" style="color: #000091">public</span> UniqueField() {}
<span class="code-keyword" style="color: #000091">public</span> UniqueField(<span class="code-object" style="color: #910091">String</span> value) {
<span class="code-keyword" style="color: #000091">super</span>();
<span class="code-keyword" style="color: #000091">this</span>.value = value;
}
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">String</span> getValue() {
<span class="code-keyword" style="color: #000091">return</span> value;
}
<span class="code-keyword" style="color: #000091">public</span> void setValue(<span class="code-object" style="color: #910091">String</span> value) {
<span class="code-keyword" style="color: #000091">this</span>.value = value;
}
}
@Entity
@Table(name=<span class="code-quote" style="color: #009100">"more_to_it"</span>)
<span class="code-keyword" style="color: #000091">public</span> class MoreToIt {
@Id
@GeneratedValue(strategy = IDENTITY)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">Integer</span> id;
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">Integer</span> getId() {
<span class="code-keyword" style="color: #000091">return</span> id;
}
@Column(name=<span class="code-quote" style="color: #009100">"data"</span>,length=300)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">String</span> data;
<span class="code-keyword" style="color: #000091">public</span> void setData(<span class="code-object" style="color: #910091">String</span> data) {
<span class="code-keyword" style="color: #000091">this</span>.data = data;
}
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">String</span> getData() {
<span class="code-keyword" style="color: #000091">return</span> data;
}
@ManyToOne
@JoinColumn(name=<span class="code-quote" style="color: #009100">"unique_thing"</span>, referencedColumnName=<span class="code-quote" style="color: #009100">"unique_field"</span>, updatable=<span class="code-keyword" style="color: #000091">false</span>, insertable=<span class="code-keyword" style="color: #000091">false</span>)
<span class="code-keyword" style="color: #000091">private</span> Thing thing;
@Column(name=<span class="code-quote" style="color: #009100">"unique_thing"</span>)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">String</span> uniqueThing;
<span class="code-keyword" style="color: #000091">public</span> Thing getThing() {
<span class="code-keyword" style="color: #000091">return</span> thing;
}
<span class="code-keyword" style="color: #000091">public</span> void setThing(Thing thing) {
<span class="code-keyword" style="color: #000091">this</span>.thing = thing;
}
<span class="code-keyword" style="color: #000091">public</span> void setUniqueThing(<span class="code-object" style="color: #910091">String</span> uniqueThing) {
<span class="code-keyword" style="color: #000091">this</span>.uniqueThing = uniqueThing;
}
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">String</span> getUniqueThing() {
<span class="code-keyword" style="color: #000091">return</span> uniqueThing;
}
}
</pre>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">Note the embedded <b>UniqueField</b> and the JoinColumn use in <b>MoreToIt</b>.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">But, if adding the field "uniqueField" flat into <b>Thing</b>, it works:</p>
<div class="code panel" style="border-width: 1px;; border: 1px solid #ccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #ccc; -moz-border-radius: 3px 3px 3px 3px; border-radius: 3px 3px 3px 3px; margin: 9px 0">
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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">
@Entity
@Table(name = <span class="code-quote" style="color: #009100">"thing"</span>)
<span class="code-keyword" style="color: #000091">public</span> class Thing <span class="code-keyword" style="color: #000091">implements</span> Serializable {
@Id
@GeneratedValue(strategy = IDENTITY)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">Integer</span> id;
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">Integer</span> getId() {
<span class="code-keyword" style="color: #000091">return</span> id;
}
@Column(name = <span class="code-quote" style="color: #009100">"unique_field"</span>, length = 50, nullable = <span class="code-keyword" style="color: #000091">false</span>)
<span class="code-keyword" style="color: #000091">private</span> <span class="code-object" style="color: #910091">String</span> uniqueField;
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">String</span> getUniqueField() {
<span class="code-keyword" style="color: #000091">return</span> uniqueField;
}
<span class="code-keyword" style="color: #000091">public</span> void setUniqueField(<span class="code-object" style="color: #910091">String</span> uniqueField) {
<span class="code-keyword" style="color: #000091">this</span>.uniqueField = uniqueField;
}
}
/* no changes in MoreToIt */
</pre>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">This may be related to <a href="https://hibernate.atlassian.net/browse/HHH-4284" title="Fails to map a FK pointing to a non PK whose columns are held by properies in component" class="issue-link" data-issue-key="HHH-4284" style="color: #3b73af; text-decoration: none"></a></p>
<del>
HHH-4284
</del> but is even clearer as a case.
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