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Alex Rivera
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Using JPA, can we define an enum as id of an entity? I've tried the following: public enum AssetType { .... } @Entity @IdClass(AssetType.class) public class Adkeys { private AssetType type; @Id @Enumerated(EnumType.STRING) @Column(nullable = false) public AssetType getType() { return type; } } Using OpenJPA, it complains: org.apache.openjpa.persistence.ArgumentException: The id class "class aa.AssetType" specified by type "class aa.Adkeys" does not have a public no-args constructor. So my questions are: should we able to use enum as id for an entity on JPA? (i.e. there is a bug in OpenJPA) or do I make a mistake somewhere? and is there any workaround for such problem?
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