Is it possible to persist maps which have an entity as the key?

@CollectionOfElements
@MapKey(columns = { @Column(name = "key_value", nullable = false) })
public Map<PriceDescriptor, Double> getPriceMap()
{
return priceMap;
}

Marking the map as @OneToMany causes an error because java.lang.Double is not an entity.

Marking the map as @CollectionOfElements nearly works but fails to save at runtime because the new entities are transient and have not be persisted. Adding @Cascade(CascadeType.ALL) did not help.

Is there a way of making this work?

Thanks.
Ashley

I see that this bug describes the same things and is marked as resolved.

http://opensource.atlassian.com/project ... se/ANN-408

Is there a way around the cascade problem when using @CollectionOfElements?

nope you have to same them manually, which make sense I guess