The only way I can see that being possible is with pDic being mutable and concurrently accessed in more than one thread. For the code as below it should never happen.
Chuck
On Sep 16, 2010, at 7:34 AM, ISHIMOTO Ken wrote:
> Hi all, was a nice WOWODC, and really nice Job done Pascal.
>
>
>
> I have a small Problem about NSDictionary.
>
> NSArray<Movie> movies=
> Movie.fetchAllMovies(defaultEditingContext());
> EOEnterpriseObject eo = movies.objectAtIndex(0);
> NSDictionary pDic =
> EOUtilities.primaryKeyForObject(defaultEditingContext(), eo);
> System.err.println("1:" + pDic); -->1:{movieID = 102; }
> System.err.println("isEmpty:" + pDic.isEmpty()); -->isEmpty:true
> System.err.println("count:" + pDic.count()); -->count:1
>
>
> Hadn't isEmpty not to be false ?
>
> Also looking into isEmpty
>
> public int count() {
> return _count;
> }
>
> public boolean isEmpty() {
> System.err.println("_count : " + _count); -->_count : 0
> System.err.println("count() : " + count()); -->count : 1
>
> return _count <= 0;
> }
>
>
> Why is the result of _count and count() different?
>
> Any ideas what's going wrong?
>
>
>
>
>
>
> Thank you
>
> --------------------------------------------------------
> K's ROOM (ISHIMOTO Ken)
> --------------------------------------------------------
> [E-Mail] <[email protected]>
> [iChat:] <[email protected]>
> [HP] http://www.ksroom.com/
> _____________________________________________________________________
> This e-mail has not been scanned for viruses because it was written on an Mac,
> and there are NO Viruses on an Apple Computer.
> For further information visit http://www.apple.com
>
>
>
> _______________________________________________
> Do not post admin requests to the list. They will be ignored.
> Webobjects-dev mailing list ([email protected])
> Help/Unsubscribe/Update your Subscription:
> http://lists.apple.com/mailman/options/webobjects-dev/chill%40global-village.net
>
> This email sent to [email protected]
--
Chuck Hill Senior Consultant / VP Development
Practical WebObjects - for developers who want to increase their overall
knowledge of WebObjects or who are trying to solve specific problems.
http://www.global-village.net/products/practical_webobjects
smime.p7s
Description: S/MIME cryptographic signature
_______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [email protected]
