Re: EJB Design: entity beans and domain objects

[Laird Nelson]

Charlie Alfred wrote:
> On the surface, your example above of Order and OrderItem, seems like it
> might represent a Containment relationship.  However, the fact that OrderItems
> have meaning apart from the Order (and even after the Order is deleted) makes
> it more of an Aggregation relationship.  Specifically, OrderItems are often
> retained for sales history purposes (aggregate by product or by territory, etc.)
> long after the detail of the Order has been deleted or archived.

Ah; good point.  I was searching for an example to show this, and you
came up with one.

Cheers,
Laird

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