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

Mon, 14 July 2008 09:58

Vadim Dmitriev

Messages: 74
Registered: July 2009

Member

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!

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

Mon, 14 July 2008 13:28

Karen Butzke

Messages: 220
Registered: July 2009

Senior Member

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

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