Hello,
is it possible to use Constraints? It seems not to work ...
http://www.datanucleus.org/products/accessplatform_1_1/jpa/orm/constraints.html
The properties codingSystem and code should be unique. Is there a
workaround?
@Entity
@Table(uniqueconstraint...@uniqueconstraint(columnNames=
{"codingSystem","code"})})
public class ArticleCode {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Key id;
private String codingSystem;
private String code;
Thanks,
Ralph
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