Re: GDL2 - TODO needs to be updated

[Manuel Guesdon]

Hi,

On Mon, 17 Feb 2003 00:13:12 +0100 Stéphane Corthésy <address@hidden> wrote:
 >| The TODO file needs deep update, doesn't it?
 >| I've compared the current GDL2 API with Apple's and made a rather  
 >| exhaustive comparison. It seems the the main lacks are entity  
 >| inheritance, events, sharedEC, snapshot timestamping, deferred  
 >| faulting, prototypes, EOInterface. Can others confirm this?

Yes.

 
 >| I have some changes in my work area that I'll submit later, but in the  
 >| meantime here are the differences I observed between the APIs (I don't  
 >| even talk about implementation, as there are a lot of NSEmitToDo in the  
 >| code!):
 >| 
 >| (the prefix X means that the modifs have been done, on my side)
 >| 
 >| General:
 >| X Replace all 'extern' by macros
 >| X Take care of using 'volatile' for local vars which are modified in  
 >| NS_DURING and read in NS_HANDLER
 >| - Replace all -retain, -release, -autorelease by macros
 >| - In -copyWithZone:, test NSShouldRetainWithZone(), and use zone, for  
 >| immutable objects only

OK.

 >| - Avoid autoreleased objects (OK Markus, this will be done later ;-)

I don't understand why. Could you elaborate on this ?



 >| In EOControl:
[...]
 >| -[NSObject(EOClassDescriptionPrimitives) validateTakeValue:forKeyPath:]

Seems right.


 >| In EOAccess:
[...]
 >| - Misses sqlStrings.h

Seems right.



 >| BTW, some people asked me how stable and functional GDL2 is, and how  
 >| possible would it be to port applications written for Apple's EOF to  
 >| GDL2 (based on OSX currently, but maybe fully ported on GNUStep). Can  
 >| we get opinions from its main developers? What is the state of GDL2?

GDL2 was written to follow WO4.5.
I think it is very usable for many projects who don't need explicitely 
missing features (inheritence,...). 
Some things/case are not implemented (NSEmitToDo); some of them aren't because 
I 
don't see cases wich match them. If one get an exception on these cases, it's 
usually 
easier to see how to implement them.

I use it for a project which have around 80 entities and it works pretty well.



 >| One last thing. EOInterface. I've heard rumors that some developers,  
 >| who have rewritten something similar, would "give" it to GDL2. Some  
 >| hope in there, or should we think about rewriting it?

I have'nt head this but it would be great !

Manuel

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Manuel Guesdon - OXYMIUM <address@hidden>
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