[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-2348) seam generate-ui fails for @OneToOne @PrimaryKeyJoinColumn annotated fields

[Martin Levett (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBSEAM-2348?page=comments#action_12408491 ] 
            
Martin Levett commented on JBSEAM-2348:
---------------------------------------

I also get this error when trying to create OneToOne bidirectional relationships using the mappedBy attribute.  I am using JBoss Developer Studio 1.0.0 with Seam 2.0.1.GA.  E.g. using entities similar to previous comment (getters/setters omitted):

@Entity
public class User implements java.io.Serializable {

    @Id
    @GeneratedValue
    private long id;
    
    @OneToOne
    private UserData userData;
    ...

@Entity
public class UserData implements java.io.Serializable {

    @Id
    @GeneratedValue
    private long id;
    
    @OneToOne(mappedBy="userData")
    private User user;
    ...


Running "Seam Generate Entities" wizard results in the following error message.  

Can't generate seam entities
  org.hibernate.tool.hbm2x.ExporterException: Error while processing template view/list.xhtml.ftl
  org.hibernate.tool.hbm2x.ExporterException: Error while processing template view/list.xhtml.ftl
  freemarker.core.InvalidReferenceException: Expression property.value.typeName is undefined on line 50, column 14 in util/TypeInfo.ftl.


> seam generate-ui fails for @OneToOne @PrimaryKeyJoinColumn annotated fields
> ---------------------------------------------------------------------------
>
>                 Key: JBSEAM-2348
>                 URL: http://jira.jboss.com/jira/browse/JBSEAM-2348
>             Project: Seam
>          Issue Type: Bug
>          Components: Tools
>    Affects Versions: 2.0.0.GA
>         Environment: Seam 2.0.0.GA
> JBoss Tools
>            Reporter: Thorsten Kunz
>             Fix For: 2.1.0.GA
>
>
> Since I do use JBoss Tool I assume that this is cause by an error in the underlying seam generate-ui. It fails if you have entities annotated like this:
> public class User implements Serializable {
> 	@Id
> 	@GeneratedValue
> 	private Long id;
> 	@OneToOne
> 	@PrimaryKeyJoinColumn
> 	private UserData userData;
> }
> public class UserData implements Serializable {
> 	@Id
> 	private Long id;
> 	@OneToOne
> 	@PrimaryKeyJoinColumn
> 	private User user;
> }
> This will result in this Exception:
> org.eclipse.core.runtime.CoreException: org.hibernate.tool.hbm2x.ExporterException: Error while processing template view/list.xhtml.ftl
> org.eclipse.core.runtime.CoreException[666]: org.hibernate.tool.hbm2x.ExporterException: Error while processing template view/list.xhtml.ftl
> Caused by: freemarker.core.InvalidReferenceException: Expression property.value.typeName is undefined on line 39, column 6 in view/list.xhtml.ftl

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