Heheh, are you suggesting that making your DAO layer depend upon your
view layer is a bad idea?

I would have to agree....

Larry


On 8/31/05, Ken Weiner <[EMAIL PROTECTED]> wrote:
> I have a question about designing a webapp to use a DAO layer, lazily loaded
> objects, Hibernate, and the OpenSessionInView technique.
>  
>  Doesn't this strategy make it very difficult to reimplement the DAO layer
> sometime in the future?  If you switched a DAO implementation from Hibernate
> to let's say, Spring JDBC, then how would all the lazy loading work?  There
> would be no equivalent OpenSessionInView technique for Spring JDBC.  For
> this reason, I have been shying away from designing my domain objects such
> that the rest of the app expects them to lazily load data.
>  
>  So, instead of a Company class having a getEmployees() method, I would
> choose, instead, to have a CompanyDao.getEmployees(Company company) method
> that must be called at the point my webapp needs all the Employees for a
> Company.
>  
>  Have any of you had the same concerns?  Or am I missing how a webapp that
> relies on lazy-loaded object graphs can change DAO implementations easily?
>  
>  -Ken
>

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