[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5398) PersistentMap.keySet seems to produce a set containing values rather than keys.

[rufus hamade (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=37862#action_37862 ] 

rufus hamade commented on HHH-5398:
-----------------------------------

oops, formatting screwy.  A lot of the stuff in the description is supposed to be code fragments.  Here's the improved version with appropriate markup:



I have a persistent Map defined as follows:

{noformat}
@Entity
public class Task { 
  [snip] 

  @OneToMany(mappedBy="task") 
  @MapKey(name="actor") 
  private Map<Long, TaskCC> ccs = new HashMap<Long, TaskCC>(); 
}
{noformat}

where
{noformat}
@Entity
public class TaskCC {
  @Id @GeneratedValue
  private Long id;

  @ManyToOne(fetch=FetchType.LAZY)
  private Task task;

  @ManyToOne(fetch=FetchType.LAZY) 
  @AccessType("field") 
  private Actor actor; 
{noformat}

and actor is an independent entity (i.e., no associations to Task or TaskCC) with a Long id field.

We have some code that does something like:

{noformat}
  ids = new HashSet<Long>(bug.getCcs().keySet());
{noformat}

But the ids set seems to contain the Actors rather than the Actor IDs.

(p.s., the JIRA wiki code formatting is not very good:-( )


> PersistentMap.keySet seems to produce a set containing values rather than keys.
> -------------------------------------------------------------------------------
>
>                 Key: HHH-5398
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5398
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.3.0.SP1
>         Environment: Also Hibernate EntityManager 3.4.0 if that is relevant.
>            Reporter: rufus hamade
>
> I have a persistent Map defined as follows:
> @Entity
> public class Task  {
>  [snip]
> 	@OneToMany(mappedBy="task")
> 	@MapKey(name="actor")
> 	private Map<Long, TaskCC> ccs = new HashMap<Long, TaskCC>();
> }
> where 
> @Entity
> public class TaskCC {
> 	@Id
> 	@GeneratedValue
> 	private Long id;
> 	@ManyToOne(fetch=FetchType.LAZY)
> 	private Task task;
> 	
> 	@ManyToOne(fetch=FetchType.LAZY)
> 	@AccessType("field")
> 	private Actor actor;
> }
> and actor is an independent entity (i.e., no associations to Task or TaskCC) with a Long id field.
> We have some code that does something like:
>         	ids = new HashSet<Long>(bug.getCcs().keySet());
> But the ids set seems to contain the Actors rather than the Actor IDs.
> Let me know if the above is not sufficient and/or you want me to create a simplified test case for this.

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