RE: [Hibernate-devel] SQL Server 2000 questions

[Donnie H. <do...@ha...>]

>
> i find having the relationships in the DTOs useful as it enables the
> DTOs to be the *real* data model, rather than the database.  for me, it
> is easier to model a business problem as an object model rather than a
> relational model as u get easy inheritence, etc.  for us this translates
> to much more agile development/maintenance process.  of course u get
> back to the old trade-off of convenience/speed vs performance.
>

Here's where we have a design difference, I guess. I want the object model
to be at the BO layer, so they have the relationships, dependent objects,
etc. I'm all for using an object model, inheritance, etc. I just know that
it's so frequent that I have to send a row's data someplace, I want the data
in the DTO. Note that I like to use views to support inheritance in the
object model, though that fits best when you don't have a lot of extra
attributes in the various derived classes (otherwise the union of required
columns in the base table makes it a "wide" row w/ lots of nullable
columns).

FWIW...

Donnie