(Optional) The operations that must be cascaded to the target of the association. By default no operations are cascaded.

(Optional) Whether the association should be lazily loaded or must be eagerly fetched. The EAGER strategy is a requirement on the persistence provider runtime that the associated entity must be eagerly fetched. The LAZY strategy is a hint to the persistence provider runtime.

(Optional) Whether the association is optional. If set to false then a non-null relationship must always exist.

(Optional) The entity class that is the target of the association. Defaults to the type of the field or property that stores the association.