RE: [QUESTIONS] The Complete and Ccomprehensive list of Newbie qu estion

Jackson, DeJuan wrote:

Is this possible? Or is it already being done?

<a lot snipped>

How do you assign function to your objects?

<snip>

I don't know if tying functions to classes has been added
to the TO-DO list. You may want to post to the hacker list and
suggest
it.

Access to the function would then be gained by calling them through the
class. (i.e. select EMP.totalPeople();, or update CORPEMP set
CORPEMP.totals = DIVEMP.totalPeople();)
Just an OO thought. (*ahhhh* It's that concurrency/data-hiding/coupling
thing again.)
Then one could disallow select/update on a table but all execute on
specific functions. I do realize that this can be accomplished through
triggers, but this has other potentials...

Looks sort of like our procedural language, except that instead of
having a "pool" of functions, functions can be "member functions" of a
class. In order to do this "all the way", it seems like we will need
all instances to appear in their parent classes -- Select
people.average_age() should hit all instances of people, even those
that have been subclassed into teachers, police, lawyers, etc.

Ocie Mitchell

Is this possible? Or is it already being done?

<a lot snipped>

How do you assign function to your objects?

<snip>

I don't know if tying functions to classes has been added
to the TO-DO list. You may want to post to the hacker list and
suggest
it.

Access to the function would then be gained by calling them through the
class. (i.e. select EMP.totalPeople();, or update CORPEMP set
CORPEMP.totals = DIVEMP.totalPeople();)
Just an OO thought. (*ahhhh* It's that concurrency/data-hiding/coupling
thing again.)
Then one could disallow select/update on a table but all execute on
specific functions. I do realize that this can be accomplished through
triggers, but this has other potentials...

Currently, we don't have ACL's on functions. But at least for
the ones called by ExecMakeFunctionResult(), this really
makes sense as soon as we implement a uid/euid model for
function/view execution.

The uid/euid for functions, triggers and views is already on
my personal TODO and I hope to make it for 6.4, so we can
offer view and function/trigger creation (restricted to
trusted languages) to ordinary users.

When adding ACL's to functions, I think the ACL's at all
should be moved into a separate catalog, containing the Oid,
owner and the ACL.

Jan

--

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