I'm having some trouble with joined inheritance, my mappings are as follows but
OpenJPA doesn't seem to be picking up my @DiscriminatorValue.
Probably missing something obvious but can't see what... any suggestions much
appreciated
@Entity
@Table(name = "user_account")
@Inheritance(strategy = InheritanceType.JOINED)
@DiscriminatorColumn(name = "account_type", discriminatorType =
DiscriminatorType.STRING)
public abstract class UserAccount implements Serializable {
...
@Entity
@Table(name = "merchant")
@DiscriminatorValue("MERCHANT")
@PrimaryKeyJoinColumn(name = "merchant_id", referencedColumnName = "account_id")
public class Merchant extends UserAccount {
...
java.lang.ClassNotFoundException: Could not map discriminator value "MERCHANT"
to any known subclasses of the requested class "my.app.model.UserAccount"
(known discriminator values: [UserAccount]).
at
org.apache.openjpa.jdbc.meta.strats.ValueMapDiscriminatorStrategy.getClass(ValueMapDiscriminatorStrategy.java:98)
at
org.apache.openjpa.jdbc.meta.strats.InValueDiscriminatorStrategy.getClass(InValueDiscriminatorStrategy.java:121)
at
org.apache.openjpa.jdbc.meta.Discriminator.getClass(Discriminator.java:398)
at
org.apache.openjpa.jdbc.meta.strats.SuperclassDiscriminatorStrategy.getClass(SuperclassDiscriminatorStrategy.java:63)
at
org.apache.openjpa.jdbc.meta.Discriminator.getClass(Discriminator.java:398)
at
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState(JDBCStoreManager.java:397)
at
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCStoreManager.java:333)
at
org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:112)
at
org.apache.openjpa.datacache.DataCacheStoreManager.initialize(DataCacheStoreManager.java:360)
at
org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:112)
at
org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:57)
at org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:1022)
at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:980)
at org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:902)
at
org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:1041)
at org.apache.openjpa.jdbc.sql.AbstractResult.load(AbstractResult.java:280)
at
org.apache.openjpa.jdbc.sql.SelectImpl$SelectResult.load(SelectImpl.java:2381)
at org.apache.openjpa.jdbc.sql.AbstractResult.load(AbstractResult.java:274)
at
org.apache.openjpa.jdbc.kernel.InstanceResultObjectProvider.getResultObject(InstanceResultObjectProvider.java:59)
at
org.apache.openjpa.lib.rop.EagerResultList.<init>(EagerResultList.java:36)
at org.apache.openjpa.kernel.QueryImpl.toResult(QueryImpl.java:1251)
at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:1007)
at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:863)
at org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:794)
at
org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:542)
at org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:305)
at
org.apache.openjpa.persistence.QueryImpl.getResultList(QueryImpl.java:319)
