[Zope-dev] Re: [Z3lab] Zope Corporation's Initial Reaction on the ZF Comments

2005-06-20 Thread Martijn Faassen
Hadar Pedhazur wrote: [clarifications and opinions] Hey, I just wanted to chip in that: * I'm very happy a foundation has been announced. This is what I and others advocated for, starting in earnest after the castle sprint last year. This is a major step in the right direction. Thank you

Re: [Zope-dev] Re: Zope 2.9 goals

2005-06-20 Thread Martijn Faassen
Lennart Regebro wrote: OK, so becuase of the tomembased release schedule, let's not dicuss what goes in 2.9. let's discuss what features we found most urgent/desirable, so we can start working on that, like now. I think it's fine to discuss what we want to be in Zope 2.9. This way we can plan

Re: [Zope-dev] Re: Zope 2.9 goals

2005-06-20 Thread Chris McDonough
As I mentioned before, I'd like to see Christian's blob work make it into 2.9. So that's one feature. ;-) On Mon, 2005-06-20 at 09:55 +0200, Martijn Faassen wrote: Lennart Regebro wrote: OK, so becuase of the tomembased release schedule, let's not dicuss what goes in 2.9. let's discuss what

[Zope-dev] Re: [Z3lab] Zope Corporation's Initial Reaction on the ZF Comments

2005-06-20 Thread piero . goletto
Hi everybody, Martin Faassen wrote: * I'm very happy a foundation has been announced. Me too, and I am grateful to Zope Corp. for that. * We all agree that the Foundation should be about more than just vendors [...] We have extremely significant contributors in the community [...] It

[Zope-dev] ZOBD and pointers

2005-06-20 Thread Yair Benita
Hi All, As my ZODB data files become larger and larger I am looking at ways to make the structure of my objects more efficient. To simplify my question, suppose I have two different classes and both contain a list of a objects from a third class: class x has the attribute x.elements = [objects

[Zope-dev] Re: ZOBD and pointers

2005-06-20 Thread Laurence Rowe
As far as I am aware, ZODB will store a list of pointers to the lists of z objects. What you should be careful of for efficient use of ZODB is that your list is stored in an efficient way, well if the list is updated often or long anyway. When you pack your ZODB does it take up a lot less

Re: [Zope-dev] ZOBD and pointers

2005-06-20 Thread Tim Peters
[Yair Benita] ... suppose I have two different classes and both contain a list of a objects from a third class: class x has the attribute x.elements = [objects of class z] class y has the attribute y.elements = [objects of class z] As far as I understand python the lists x.elements and

Re: [Zope-dev] Re: ZOBD and pointers

2005-06-20 Thread Tim Peters
[Laurence Rowe] ... Unless you use a special PersistentList ZODB will have no choice but to store a new copy of the whole list when that list is modified. Caution: that's true of a PersistentList too. The purpose of PersistentList isn't realy to supply more-effecient storage (that's the

Re: [Zope-dev] ZOBD and pointers

2005-06-20 Thread Yair Benita
As always. Clear, detailed and to the point. Thanks Tim. Actually, the z class isn't a subclass of persistent because it just holds data (has no methods) and never changes. Same goes to the lists of x and y, they tend to hold a few elements and also never change. The X and Y classes are

Re: [Zope-dev] ZOBD and pointers

2005-06-20 Thread Tim Peters
[Yair Benita] ... Reading this answer I understand that anything I store should be persistent, even if its a list I don't plan to edit. I wouldn't say that. For example, for _most_ applications it would be foolish to create a subclass of Persistent to store an integer, as opposed to just

[Zope-dev] Re: ZOBD and pointers

2005-06-20 Thread Tres Seaver
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Tim Peters wrote: [Yair Benita] ... Reading this answer I understand that anything I store should be persistent, even if its a list I don't plan to edit. I wouldn't say that. For example, for _most_ applications it would be foolish to create

[Zope-dev] FW: [Zope-Annce] Zope Foundation ideas

2005-06-20 Thread Hadar Pedhazur
FYI, for the few of you who may not actually listen to the bigger lists ;-) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rob Page Sent: Monday, June 20, 2005 5:54 PM To: zope@zope.org; zope-announce@zope.org Subject: [Zope-Annce] Zope Foundation ideas