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PO@Embeddable and @EmbeddedId consists only of complex classes
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copied!<p>I have the following problem:</p> <p>One of my entities has to use a complex class as ID. (To solve this I use @EmbeddedId)</p> <p>The complex class has a combined primary key of 2 other complex classes [I got the following error: Caused by: org.hibernate.AnnotationException: model.IElementKey has no persistent id property: model.impl.Element.id].</p> <p>The problem is how to solve this without adding a non complex type to the ID-class.</p> <p>Edit: I have to user JPA only [javax.persistence.*]</p> <p>Edit2: Small Code Example (getters/setters are left out for simplicity)</p> <pre><code>@Embeddable public class EntityKey implements IEntityKey, Serializable { private static final long serialVersionUID = 1L; @ManyToOne(targetEntity = Entity1.class, optional = false) private IEntity1 entity1 = null; @ManyToOne(targetEntity = Entity2.class, optional = false) private IEntity2 entity2 = null; } @Entity public class MixEntity implements IMixEntity { @EmbeddedId private IEntityKey id = null; } @Entity public class Entity1 implements IEntity1 { @Id private Long id = null; @OneToMany(targetEntity = MixEntity.class, mappedBy = "id.entity1") private List<IMixEntity> mixEntities = new ArrayList<IMixEntity>(); } @Entity public class Entity2 implements IEntity2 { @Id private Long id = null; @OneToMany(targetEntity = MixEntity.class, mappedBy = "id.entity2") private List<IMixEntity> mixEntities = new ArrayList<IMixEntity>(); } </code></pre>

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