On Mar 10, 2008, at 4:51 PM, David Avendasora wrote:
On Mar 10, 2008, at 3:43 PM, David Elliott wrote:
Woah. Hold up there. If you fetch one of the subclasses you will
see one query. It will join the subclass table with the base
table. That's it.
It's only when you fetch the base
On Mar 10, 2008, at 3:43 PM, David Elliott wrote:
On Mar 10, 2008, at 11:35 AM, David Avendasora wrote:
Nathan,
I think you will find that Vertical Inheritance is much more
resource intensive than you'd think. David Elliotts email points
this out in that if query an object of the superc
On Mar 10, 2008, at 11:35 AM, David Avendasora wrote:
Nathan,
I think you will find that Vertical Inheritance is much more
resource intensive than you'd think. David Elliotts email points
this out in that if query an object of the superclass or any one
subclass is requested, it does a qu
On Mar 10, 2008, at 7:34 AM, Nathan Gabrish wrote:
Thank you for the help. I was able to pass the consistency check by
adding restrictive qualifiers to both the super and subclasses (I
could have sworn I had tried that already) however, this does not
seem to work across models. What is a l
Nathan,
I think you will find that Vertical Inheritance is much more resource
intensive than you'd think. David Elliotts email points this out in
that if query an object of the superclass or any one subclass is
requested, it does a query for each possible subclass as well. So if
you have
Thank you for the help. I was able to pass the consistency check by adding
restrictive qualifiers to both the super and subclasses (I could have sworn
I had tried that already) however, this does not seem to work across models.
What is a little confusing to me is the need to put a qualifier on the
Non-abstract superclasses must have restricting qualifiers as well as
their subclasses. What were the restricting qualifiers you used? They
must be unique.
Do you have any choice in the use of Vertical Inheritance? I used to
use it as it made my "DB Normalization" voice stop screaming at me
Hi Nathan,
Your problem is that your superclass is non-abstract. If you really
do want instances of your superclass then you MUST write a qualifier
to distinguish records in your base table that need to instantiate an
object of your base class vs. records that have data in some other
tab
