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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-10651" style="color: #3b73af; text-decoration: none"><img src="cid:jira-generated-image-avatar-a0381bda-fa7f-43ff-9563-f7a42aa2260c" height="16" width="16" border="0" align="absmiddle" alt="Bug" style="vertical-align: text-bottom"></a> <a href="https://hibernate.atlassian.net/browse/HHH-10651" style="color: #3b73af; text-decoration: none">HHH-10651</a> </td>
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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-10651" style="color: #3b73af; text-decoration: none">Annotations of nested Embeddables are not processed when the Embeddables are in an ElementCollection.</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">Change By:</th>
<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="jbraeuchi" id="email_jbraeuchi" href="https://hibernate.atlassian.net/secure/ViewProfile.jspa?name=jbraeuchi" style="color:#6c797f;; color: #3b73af; text-decoration: none">Jakob Braeuchi</a> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0"> <span class="diffcontext">Annotations of nested Embeddables are not processed when the Embeddables are in an ElementCollection.<br><br>We have the following situation:<br><br>EmbeddableOne includes EmbeddableTwo includes EmbeddableThree.<br>Entity includes a single EmbeddableOne and a Set of EmbeddableOnes using ElementCollection.<br><br>{code:java}<br>public class EmEntity {<br> @Id<br> @GeneratedValue<br> private long id;<br> private String name;<br><br> @Type(type = "org.jadira.usertype.dateandtime.joda.PersistentLocalDate")<br> private LocalDate birthdate;<br><br> @Embedded<br> private EmEmbeddableOne one;<br><br> @ElementCollection<br> @CollectionTable(name = "EM_ENTITY_ONES")<br> @AttributeOverrides({<br> @AttributeOverride(name = "date", column = @Column(name = "OV_DATE_ONE")),<br> @AttributeOverride(name = "two.date", column = @Column(name = "OV_DATE_TWO")),<br> @AttributeOverride(name = "two.three.date", column = @Column(name = "OV_DATE_THREE")),<br><br> @AttributeOverride(name = "name", column = @Column(name = "OV_NAME_ONE")),<br> @AttributeOverride(name = "two.name", column = @Column(name = "OV_NAME_TWO")),<br> @AttributeOverride(name = "two.three.name", column = @Column(name = "OV_NAME_THREE")),<br> })<br> private Set<EmEmbeddableOne> manyOnes = new HashSet<>();<br>...<br>{code}<br><br>Each Embeddable has it's own @Column and @Type Annotation:<br><br>{code:java}<br>@Embeddable<br>public class EmEmbeddableOne {<br> @Column(name = "NAME_ONE")<br> private String name;<br><br> @Column(name = "DATE_ONE")<br> @Type(type = "org.jadira.usertype.dateandtime.joda.PersistentLocalDate")<br> private LocalDate date;<br><br> @Embedded<br> private EmEmbeddableTwo two;<br>...<br>{code}<br><br>When creating the tables Hibernate correctly uses the Annotations on the Properties to name the Columns and to set the Types of the Columns (using MySql):<br><br>create table EM_ENTITY (id bigint not null, birthdate date, name varchar(255), DATE_ONE date, NAME_ONE varchar(255), DATE_TWO date, NAME_TWO varchar(255), DATE_THREE date, NAME_THREE varchar(255), primary key (id))<br><br>When creating the table for the ElementCollection (*without *AttributeOverrides):<br><br>{code:java}<br> @ElementCollection<br> @CollectionTable(name = "EM_ENTITY_ONES")<br>// @AttributeOverrides({<br>// @AttributeOverride(name = "date", column = @Column(name = "OV_DATE_ONE")),<br>// @AttributeOverride(name = "two.date", column = @Column(name = "OV_DATE_TWO")),<br>// @AttributeOverride(name = "two.three.date", column = @Column(name = "OV_DATE_THREE")),<br>//<br>// @AttributeOverride(name = "name", column = @Column(name = "OV_NAME_ONE")),<br>// @AttributeOverride(name = "two.name", column = @Column(name = "OV_NAME_TWO")),<br>// @AttributeOverride(name = "two.three.name", column = @Column(name = "OV_NAME_THREE")),<br>// })<br> private Set<EmEmbeddableOne> manyOnes = new HashSet<>();<br> ...<br>{code}<br> <br>I get the following MappingException:<br>Caused by: org.hibernate.MappingException: Repeated column in mapping for collection: nestedEmbeddables.entity.EmEntity.manyOnes column: date<br> at org.hibernate.mapping.Collection.checkColumnDuplication(Collection.java:333)<br> at org.hibernate.mapping.Collection.checkColumnDuplication(Collection.java:358)<br> at org.hibernate.mapping.Collection.validate(Collection.java:319)<br> at org.hibernate.mapping.Set.validate(Set.java:27)<br> at org.hibernate.boot.internal.MetadataImpl.validate(MetadataImpl.java:333)<br> at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:464)<br> at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:881)<br> ... 26 more<br><br>although a different Column-Name is defined for each Embeddable.<br><br>When creating the table for the ElementCollection (with AttributeOverrides enabled) the MappingException is gone but the Date-Columns have a *wrong Type* (tinyblob instead of date):<br><br>create table EM_ENTITY_ONES (EmEntity_id bigint not null, OV_DATE_ONE date, OV_NAME_ONE varchar(255), OV_DATE_TWO tinyblob, OV_NAME_TWO varchar(255), OV_DATE_THREE tinyblob, OV_NAME_THREE varchar(255))</span> </td>
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