@AttributeOverrides question
I must be missing something because I can't get @AttributeOverrides to actually override the mapping laid down in the superclass...
Here is my MappedSuperclass...
@MappedSuperclass
public abstract class ShipmentItem<ShipmentType extends Shipment,ItemType extends Entity> extends Entity
{
//relationship
protected ShipmentType shipment;
protected ItemType item;
//attributes
private Integer quantity;
public ShipmentItem()
{
super();
}
public Integer getQuantity()
{
return quantity;
}
public void setQuantity(Integer quantity)
{
this.quantity = quantity;
}
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "itemId")
public ItemType getItem()
{
return item;
}
public void setItem(ItemType item)
{
this.item=item;
}
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "shipmentId")
public ShipmentType getShipment()
{
return shipment;
}
public void setShipment(ShipmentType shipment)
{
this.shipment=shipment;
}
}
Then i have a concreate subclass that looks like this...
@Entity
@Table(name = "colorBreakShipment")
@AttributeOverrides( {
@AttributeOverride(name = "item", column = @Column(name = "colorBreakId")),
@AttributeOverride(name = "shipment", column = @Column(name = "colorBreakShipmentId"))
})
public class ColorBreakShipmentItem extends ShipmentItem<ColorBreakShipment, ColorBreak>
{
public ColorBreakShipmentItem()
{
super();
}
}
when i test the entity I get the following exception...
Caused by: org.hibernate.exception.SQLGrammarException: could not initialize a collection: [com.tura.insight.core.entity.ColorBreak.colorBreakShipmentItems#2715] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:65) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.loader.Loader.loadCollection(Loader.java:1926) at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:71) at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:520) at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60) at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1695) at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344) at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86) at org.hibernate.collection.PersistentBag.iterator(PersistentBag.java:246) at com.tura.insight.core.command.EntityInitializationExpressionParser.touch(EntityInitializationExpressionParser.java:240) at com.tura.insight.core.command.EntityInitializationExpressionParser.parseExpression(EntityInitializationExpressionParser.java:225) at com.tura.insight.core.command.EntityInitializationExpressionParser.parseExpression(EntityInitializationExpressionParser.java:136) at com.tura.insight.core.command.CommandProcessor.parseResultInitializationExpression(CommandProcessor.java:61) at com.tura.insight.core.service.ServiceDelegateImpl.initializeResult(ServiceDelegateImpl.java:111) at com.tura.insight.core.service.ServiceDelegateImpl.processCommand(ServiceDelegateImpl.java:82) at com.tura.insight.core.service.ServiceDelegateImpl.execute(ServiceDelegateImpl.java:49) at jrockit.reflect.VirtualNativeMethodInvoker.invoke(Ljava.lang.Object;[Ljava.lang.Object;)Ljava.lang.Object;(Unknown Source) at java.lang.reflect.Method.invoke(Ljava.lang.Object;[Ljava.lang.Object;J)Ljava.lang.Object;(Unknown Source) Caused by: java.sql.SQLException: Invalid column name 'itemId'. at net.sourceforge.jtds.jdbc.SQLDiagnostic.addDiagnostic(SQLDiagnostic.java:365) at net.sourceforge.jtds.jdbc.TdsCore.tdsErrorToken(TdsCore.java:2781) at net.sourceforge.jtds.jdbc.TdsCore.nextToken(TdsCore.java:2224) at net.sourceforge.jtds.jdbc.TdsCore.getMoreResults(TdsCore.java:628) at net.sourceforge.jtds.jdbc.JtdsStatement.executeSQLQuery(JtdsStatement.java:418) at net.sourceforge.jtds.jdbc.JtdsPreparedStatement.executeQuery(JtdsPreparedStatement.java:693) at org.jboss.resource.adapter.jdbc.WrappedPreparedStatement.executeQuery(WrappedPreparedStatement.java:236) at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:139) at org.hibernate.loader.Loader.getResultSet(Loader.java:1669) at org.hibernate.loader.Loader.doQuery(Loader.java:662) at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224) at org.hibernate.loader.Loader.loadCollection(Loader.java:1919) at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:71) at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:520) at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60) at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1695) at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344) at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86) at org.hibernate.collection.PersistentBag.iterator(PersistentBag.java:246) at com.tura.insight.core.command.EntityInitializationExpressionParser.touch(EntityInitializationExpressionParser.java:240) at com.tura.insight.core.command.EntityInitializationExpressionParser.parseExpression(EntityInitializationExpressionParser.java:225) at com.tura.insight.core.command.EntityInitializationExpressionParser.parseExpression(EntityInitializationExpressionParser.java:136) at com.tura.insight.core.command.CommandProcessor.parseResultInitializationExpression(CommandProcessor.java:61) at com.tura.insight.core.service.ServiceDelegateImpl.initializeResult(ServiceDelegateImpl.java:111) at com.tura.insight.core.service.ServiceDelegateImpl.processCommand(ServiceDelegateImpl.java:82) at com.tura.insight.core.service.ServiceDelegateImpl.execute(ServiceDelegateImpl.java:49)
Based on the example in the latest version of the spec for @AttributeOverride and @AttributeOverrides I would think this would work? Is it because my super class is generic? I shouldd mention I'm still using ejb3.0 rc4