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https://issues.apache.org/jira/browse/OPENJPA-1028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12696975#action_12696975
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Pinaki Poddar commented on OPENJPA-1028:
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Is this mapping consistent?
EmbedA says
@OneToOne(mappedBy="a", fetch = FetchType.EAGER, cascade = CascadeType.ALL)
EntityB entityB;
But EntityB declares its field 'a' as EntityA not as EmbedA
@OneToOne
private EntityA a;
> ClassCastException during findBy when embeddable is involved
> ------------------------------------------------------------
>
> Key: OPENJPA-1028
> URL: https://issues.apache.org/jira/browse/OPENJPA-1028
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Fay Wang
> Assignee: Fay Wang
>
> Caused by: java.lang.ClassCastException: myFvt.EmbedA incompatible with
> myFvt.EntityA
> at myFvt.EntityB.pcReplaceField(EntityB.java)
> at
> org.apache.openjpa.kernel.StateManagerImpl.replaceField(StateManagerImpl.java:3083)
> at
> org.apache.openjpa.kernel.StateManagerImpl.storeObjectField(StateManagerImpl.java:2512)
> at
> org.apache.openjpa.kernel.StateManagerImpl.storeObject(StateManagerImpl.java:2502)
> at
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.setMappedBy(JDBCStoreManager.java:453)
> at
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState(JDBCStoreManager.java:384)
> at
> org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCStoreManager.java:289)
> at
> org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:111)
> at
> org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:57)
> at org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:995)
> at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:953)
> This ClassCastException occurred in the following test scenario:
> (1)
> @Entity
> public class EntityA implements Serializable {
> @Id
> Integer id;
> @Embedded
> EmbedA embedA;
> ...
> }
> (2)
> @Embeddable
> public class EmbedA {
>
> @OneToOne(mappedBy="a", fetch = FetchType.EAGER, cascade =
> CascadeType.ALL)
> EntityB entityB;
>
> ...
> }
> (3)
> @Entity
> public class EntityB {
>
> @Id
> protected int id;
> @OneToOne
> private EntityA a;
> ...
> }
> (4) test case:
> EntityManager em = emf.createEntityManager();
> EntityA a = em.find(EntityA.class, 1);
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