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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-9475" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-static-bug-b2be6929-4f61-44c2-b61b-7a2c5825e511" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom" /></a> <a href="https://hibernate.atlassian.net/browse/HHH-9475" style="color: #3b73af; text-decoration: none">HHH-9475</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-9475" style="color: #3b73af; text-decoration: none">Cannot mix @MapKey with @Convert</a> </span>
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Issue Type:
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Affects Versions:
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4.3.7
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Assignee:
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Unassigned
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Components:
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core
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Created:
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01/Nov/2014 22:53 PM
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Environment:
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Hibernate 4.3.7, MySQL 5
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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="pbenedict" id="email_pbenedict" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=pbenedict" style="color:#6c797f;; color: #3b73af; text-decoration: none">Paul Benedict</a>
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">I have the following issue working just fine with Eclipselink, but it does not work with Hibernate. This is the error I receive:</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">
Caused by: org.hibernate.MappingException: No type name
at org.hibernate.mapping.SimpleValue.getType(SimpleValue.java:319)
at org.hibernate.mapping.SimpleValue.isValid(SimpleValue.java:310)
at org.hibernate.mapping.IndexedCollection.validate(IndexedCollection.java:90)
at org.hibernate.cfg.Configuration.validate(Configuration.java:1362)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1849)
at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl$4.perform(EntityManagerFactoryBuilderImpl.java:850)
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<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">The error is caused when the field referenced by @MapKey also has an attribute converter through @Convert. If I remove @Convert, the error goes away. However, I really prefer to use @Convert so I can control how that field is outputted to the database.</p>
<p style="margin-top:0;margin-bottom:10px;; margin: 10px 0 0 0">This is how you reproduce the problem:</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">
<span class="code-keyword" style="color: #000091">public</span> class Parent {
@OneToMany(mappedBy = <span class="code-quote" style="color: #009100">"parent"</span>, cascade = CascadeType.ALL)
@MapKey(name = <span class="code-quote" style="color: #009100">"locale"</span>)
Map<Locale, Child> children;
}
<span class="code-keyword" style="color: #000091">public</span> class Child {
@ManyToOne
<span class="code-keyword" style="color: #000091">private</span> Parent parent;
@Convert(converter = MyLocaleConverter.class)
<span class="code-keyword" style="color: #000091">private</span> Locale locale;
}
@Converter
<span class="code-keyword" style="color: #000091">public</span> class MyLocaleConverter <span class="code-keyword" style="color: #000091">implements</span> AttributeConverter<Locale, <span class="code-object" style="color: #910091">String</span>> {
@Override
<span class="code-keyword" style="color: #000091">public</span> <span class="code-object" style="color: #910091">String</span> convertToDatabaseColumn(Locale attribute) {
<span class="code-keyword" style="color: #000091">return</span> attribute.toLanguageTag();
}
@Override
<span class="code-keyword" style="color: #000091">public</span> Locale convertToEntityAttribute(<span class="code-object" style="color: #910091">String</span> dbData) {
<span class="code-keyword" style="color: #000091">return</span> (dbData != <span class="code-keyword" style="color: #000091">null</span>) ? Locale.forLanguageTag(dbData) : <span class="code-keyword" style="color: #000091">null</span>;
}
}
</pre>
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