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"Unresolved generator name" if no class is not annotated with @Entity [message #434929]

Mon, 14 July 2008 05:58

Eclipse User

Hi!
Here is an example class:

@MappedSuperclass
@Table(name="T_WEB_TEMP_APPL")
@SequenceGenerator(sequenceName="T_WEB_TEMP_APPL_SEQ", name = "appl_seq",
allocationSize = 1)
public class ApplicationBase implements Serializable {

@Id
@GeneratedValue(strategy=GenerationType.SEQUENCE, generator = "appl_seq")
private Long id;
...
}

"appl_seq" in @GeneratedValue annotation is marked with error: Unresolved
generator name "appl_seq". If @Entity annotation is added - error goes
away.
I'm pretty new to all that JPA stuff, so it's entirely possible that @Id
or @GeneratedValue are not allowed within @MappedSuperclass. Though I
haven't found any indication of that nor on the net neither in the books.

I'll be grateful for clarification on this issue.
Thanks very much!

Re: "Unresolved generator name" if no class is not annotated with @Entity [message #434930 is a reply to message #434929]

Mon, 14 July 2008 09:28

Eclipse User

Hi,
SequenceGenerator is not supported on MappedSuperclasses, but if you just
move the SequenceGenerator annotation to the Id mapping that would work
fine, and as far as I know is perfectly valid. I agree that it's not
terribly clear, I often use the orm.xml schema to determine which
annotations belong with which mappings.

thanks,
Karen

Re: "Unresolved generator name" if no class is not annotated with @Entity [message #434939 is a reply to message #434930]

Wed, 16 July 2008 18:27

Eclipse User

Thanks, Karen. Really nice idea you shared about orm.xml... haven't
thought about it as a reference for using annotations :)

Re: "Unresolved generator name" if no class is not annotated with @Entity [message #610623 is a reply to message #434929]

Mon, 14 July 2008 09:28

Eclipse User