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

(Optional) The basic or embeddable class that is the element type of the collection. This element is optional only if the collection field or property is defined using generics, and must be specified otherwise. It defaults to the paramterized type of the collection when defined using generics.