[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5529) Bulk delete on Entity with @ElementCollection ignores the @CollectionTable

[James Howe (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=39652#action_39652 ] 

James Howe commented on HHH-5529:
---------------------------------

As the JPA wikibook explains : "There is no cascade option on an ElementCollection, the target objects are always persisted, merged, removed with their parent." Embeddable entities and Basic types should have the same lifetime as their owner, effectively all operations should cascade.



> Bulk delete on Entity with @ElementCollection ignores the @CollectionTable
> --------------------------------------------------------------------------
>
>                 Key: HHH-5529
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5529
>             Project: Hibernate Core
>          Issue Type: New Feature
>          Components: entity-manager
>    Affects Versions: 3.3.2, 3.5.5, 3.6.0.Beta4
>         Environment: Hibernate 3.5.x, all database, all platforms.
>            Reporter: Pascal Thivent
>         Attachments: HHH-XXX.tar.gz
>
>
> I have an entity with a collection of basic elements mapped with @ElementCollection:
> {code}
> @Entity
> public class Foo {
>     @Id @GeneratedValue
>     private Long id;
>     @ElementCollection
>     @Column(name = "bar_column")
>     @CollectionTable(name = "Bar")
>     private Set<String> bars = new HashSet<String>();
>     public Long getId() { return id; }
>     public void setId(Long id) { this.id = id; }
>     public Set<String> getBars() { return bars; }
>     public void setBars(Set<String> bars) { this.bars = bars; }
> }
> {code}
> A bulk delete on this entity fails due to constraint violation on the collection table (Hibernate ignores the collection table).
> I don't think that the following cascading restriction from the JPA 2.0 specification applies:
> {quote}
> h3. 4.10 Bulk Update and Delete Operations
> ...
> A delete operation only applies to entities of the specified class and its subclasses. It does not cascade to related entities.
> {quote}
> In other words, Hibernate should handle the collection table as we have no way to bulk delete the basic elements from the collection table.
> I have attached a test case allowing to reproduce the issue.

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