On Jun 22, 2013, at 7:58 PM, Michael Crawford wrote:
>
> In less than ten seconds it asked which of four street addresses in
> lived at, in Owl's Head, Maine. While I did live in Owl's Head back
> in the day, there were very, very few people who knew my street
> address. KickStarter also knew
What the docs state that is meaningless (although inaccurate); the
Objectice-C manual could very easily state that Objective-C is not a
programing language; it is. CoreData is a database. A database need never
write anything to a file. There are - in fact - several examples, of all
manor, of in-
It's a mixed graph structure. Basically, I'm storing all unique nodes in an
NSMutableArray, then using NSPointerArrays to build the adjacency lists. It
works really nicely for learning/building the graph, but it does seem as though
searches are a little slower. My guess is that this is because I
On Jun 22, 2013, at 9:56 PM, James Maxwell wrote:
> I've recently been working on an optimized version of a pretty complex
> project. The big problem before was memory usage, and I'm happy to say that
> I've tackled that really well. However, in order to do this I switched from
> using NSMutabl
Would the C++ Standard Template Library help?
One can compile "Objective-C++" by giving such sources the ".mm" extension.
In general there are data structure templates, and algorithm templates
- search a vector, search a tree, search a linked list, sort a vector,
etc.
The algorithms all have spe
On 23/06/2013, at 12:56 PM, James Maxwell wrote:
> I've thought creating my sparse arrays using NSHashTable (keyed by
> NSIntegers) instead of NSPointerArray. Does this seem like a reasonable way
> to speed things up?
Don't guess: measure.
If you can show that your iterators are the culprit
OK this is really creepy.
KickStarter has the reasonable requirement that one verify one's
identity. So I entered my first and last name, my real birthday -
which I never post online _anywhere_, so as to avoid identity theft,
and my present home address, which no one at all knows about because
I'
Hello All,
I've recently been working on an optimized version of a pretty complex project.
The big problem before was memory usage, and I'm happy to say that I've tackled
that really well. However, in order to do this I switched from using
NSMutableDictionaries to sparse NSPointerArrays. On the
Oopsy-Doodle.
I'll look into what Cocotron and GNUStep have done before actually
launching my KickStarter Project.
Just about their very first requirement is to state one's funding goal
and time deadline. I just took a wild guess and specified thirty
days, and twenty thousand dollars.
That migh
On Jun 22, 2013, at 8:38 PM, Michael Crawford wrote:
> Just now I'm about to register a KickStarter project that would
> compensate me for completely reverse-engineering the Core Data
> formats.
I believe that some of the work on this has been done already; Cocotron and
GNUStep both seem to hav
> To me, it's not that you'd have to write all the code from scratch that makes
> Core Data concerning, it's the fact that the format is undocumented.
> If Apple published a complete specification for the format, I'd be willing to
> use Core Data, but as it is, the prospect of having
> one's own
On Jun 22, 2013, at 17:52 , Nick Zitzmann wrote:
> I did search the documentation and the archives, and didn't see anyone
> talking about this. It appears that, in view-based NSTableViews or
> NSOutlineViews, if a row is designated as a group row/item, then the view
> spans the entire column,
Relational Databases and Databases in general are two different things.
E. F. Codd proposed Relational Databases in a 1970 Communications of
the ACM paper that turned up instantly in a search. Here's a PDF:
http://www.seas.upenn.edu/~zives/03f/cis550/codd.pdf
That paper itself says nothing a
I did search the documentation and the archives, and didn't see anyone talking
about this. It appears that, in view-based NSTableViews or NSOutlineViews, if a
row is designated as a group row/item, then the view spans the entire column,
and the table column argument passed into -outlineView:view
On Jun 22, 2013, at 10:43 AM, Michael Crawford wrote:
> I don't use Core Data because it's not cross-platform. In my honest
> opinion no one in their right mind would bet their livelihood on
> platform-specific document formats, no matter what the platform.
>
> ...
>
> While one can use SQLite
... yes, and if you are going to be pedantic, please be somehow consistent
with the docs:
> Core Data provides an infrastructure for change management and for saving
objects to and retrieving them from storage. It can use SQLite as one of
its persistent store types. *It is not, though, in and of i
Yes, CoreData is a database, and it does do ORM. It's not just an ORM, and
it's not an RDBMS.
If it wasn't a database, it couldn't store data; that is the definition of a
database. A database is not something that has row, columns, etc; it's
something that stores data in an unspecified manor.
I don't use Core Data because it's not cross-platform. In my honest
opinion no one in their right mind would bet their livelihood on
platform-specific document formats, no matter what the platform.
I used to be a Senior Engineer at Apple. Many of my best friends
still work for Apple. But I reme
On Jun 22, 2013, at 12:55 AM, Rick Mann wrote:
>
> On Jun 22, 2013, at 00:50 , Keith J. Schultz wrote:
>
>> Core data helps in setting up the database, but deleting is another matter.
>> You should do that manually for consistency. Core Data has no knowledge of
>> the
>> semantics of your da
On Jun 22, 2013, at 00:50 , Keith J. Schultz wrote:
> Core data helps in setting up the database, but deleting is another matter.
> You should do that manually for consistency. Core Data has no knowledge of
> the
> semantics of your database. so use prepareToDelete.
Yeah, I set it back to a
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