[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3798) failure to lazy load a manyToOne and oneToMany mapped entity

[Gail Badner (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3798?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=36669#action_36669 ] 

Gail Badner commented on HHH-3798:
----------------------------------

When you say it is resistant to Hibernate.initialize(<Data>.revision), do you get an exception? 

> failure to lazy load a manyToOne and oneToMany mapped entity
> ------------------------------------------------------------
>
>                 Key: HHH-3798
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3798
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.3.1, 3.5.0.Beta-1
>         Environment: hibernate annotations test case, maven profile hsqldb, svn rev 16079
> hibernate-core 3.3.1.GA, JBoss 4.2.3, SQLServer 2000
>            Reporter: Ronald Kurz
>         Attachments: test-case.tar.gz, test-case2.tar.gz
>
>
> Following situtation: an entity Data has Revision entities (oneToMany). Each Revision entity belongs to a Data entity. The Data entity has one manyToOne mapping to the current Revision. The mappings from Data to Revision are all lazy.
> When loading a Data entity, which has two Revisions, the Revision entity which is also mapped as manyToOne (the current Revision for that Data entity), does not get loaded. It will be an uninitialized proxy, which is also resistent to Hibernate.initialize(<Data>.revision). The same proxy is also in the oneToMany mapped list.
> @Entity
> public class Data {
>   @Id @GeneratedValue
>   public int id;
>   @ManyToOne(fetch = FetchType.LAZY)
>   @JoinColumn(name = "revisionId")
>   public Revision revision;
>   @OneToMany(mappedBy = "data")
>   public List<Revision> revisions = new ArrayList<Revision>();
> }
> @Entity
> public class Revision {
>   @Id @GeneratedValue
>   public int id;
>   @ManyToOne(fetch = FetchType.LAZY)
>   @JoinColumn(name = "dataId", nullable = false, updatable = false)
>   public Data    data;
>   public Integer number;
> }
> The test case is written for the hibernate-annotations project (simply because I never wrote a mapping using xml)

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