[Dev] Re: [commits] (capps)  Update to architecture overview
Katie Capps Parlante
capps at osafoundation.org
Tue Dec 13 12:11:30 PST 2005
Andi Vajda wrote:
> On Tue, 13 Dec 2005, John Anderson wrote:
>> Under the description of Collections, you might want to mention that
>> Collections can be made by combining two or more Collections with
>> boolean operations. Rather than saying collections use queries, you
>> might say Collections can contain all the items of a Kind, or filter
>> another Collection using a Python expression.
> Collections don't always contain all items of a kind, nor a filter thereof.
> That's just two examples.
> A more appropriate statement would be to say that collections are based
> off a Kind or off a ref collection and that collections can be combined
> together using set arithmetic or filter expressions written in python.
Good points. I completely rewrote that whole section sorta late last
night, discussing the various types of Collection.
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