[ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=38273#action_38273 ]
James Wong commented on HHH-5528:
---------------------------------
Does this mean when using hibernate, the only way to delete objects that use an @ElementCollection annotation must be deleted one by one. ie by doing a query and then individually deleting each object? Or is there some other documentation I have missed?
> Defining an object with an @ElementCollection prevents bulk delete
> ------------------------------------------------------------------
>
> Key: HHH-5528
> URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5528
> Project: Hibernate Core
> Issue Type: Bug
> Affects Versions: 3.5.4
> Reporter: Jacob Rhode
> Attachments: HHH-5528.tar.gz
>
>
> The following query to delete a set of records, only works in some circumstances:
> {code}
> Query query=em.createQuery("DELETE FROM Person");
> query.executeUpdate();
> {code}
> If you use an @ElementCollection and add some data, this query will fail. Example class:
> {code:title=Person.java|borderStyle=solid}
> @Entity
> @Table(name="person")
> public class Person implements Comparable<Person> {
> @Id
> @GeneratedValue(strategy = GenerationType.AUTO)
> @Column(name="id")
> private long id = 0;
> @ElementCollection
> @Column(name = "activation_key")
> @CollectionTable(name = "activation_key")
> private Set<String> activationKey = new HashSet<String>();
> }
> {code}
> The following error is generated while trying to bulk delete:
> {code}
> 2029 [main] ERROR
org.hibernate.util.JDBCExceptionReporter - integrity
> constraint violation: foreign key no action; FKCEC6E942485388AB
> table: ACTIVATION_KEY
> {code}
> As a result, this means code that formerly worked using a bulk delete, can stop working due to an @ElementCollection being added to the associated Java class.
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